Most Common Repairs on Laptop Displays

When it comes to laptop repair, displays are some of the least likely components to fail. Nevertheless, problems can arise that require replacement or repair of the parts that make up the laptop display and its connection to the system board and other components. Here is a list of some of the most common repairs pertaining to laptop displays.

  1. Loose connection

The cable that connects the display to the system board is generally a very thin one, with a small connector. If this connector becomes loose, it may cause the display to go black intermittently or to fail to work at all. Luckily, fixing this problem is generally as easy as reseating the connector so that it functions properly, although it can be difficult to access on some models.

  1. Bad inverter

The LCD inverter is responsible for providing power to the backlight of the display. When an inverter is malfunctioning, it can cause the screen to go black, the brightness to dim, and other issues. You can find replacement inverters by finding individual sections on our website, such as IBM Lenovo laptop inverters.

  1. Bad backlight

Backlight problems generally cause the same problems as a bad inverter, making it difficult to diagnose between the two issues. In many cases, it can be a good idea to replace the inverter first and see if it solves the problem.

  1. Bad display/bad pixels/stuck pixels

The other common display problems lie in the LCD screen itself. Issues such as stuck pixels, bad pixels, and lines or dots on the screen can usually only be resolved by replacing the screen itself. You can find replacement screens on our website under the correct manufacturer heading for your laptop, such as Toshiba Laptop LCDs.

This list gives a general breakdown of the most common laptop repairs. If your laptop display is having other problems, or you are inexperienced in laptop repair, it is a good idea to have a professional repair shop diagnose and repair your laptop. Feel free come to our on-line shop to find whatever parts you may need to fix your display.

How To Troubleshoot A Laptop Inverter Issue

In a laptop, the inverter refers to a small circuit board housed as close to the monitor lamps as possible. An LCD typically requires two monitor lamps to illuminate your display, and those lamps require a higher voltage than the rest of your machine. The inverter powers these bulbs to increase the brightness of your display to a crisp, visible level.

When the inverter in a laptop goes bad, this can cause multiple problems with your machine. It can cause your screen to flicker on and off, become too faint to read, or even cause a faint buzzing noise. To test whether your inverter in your laptop has in fact gone bad, you will need to do one of two things: either replace the inverter board with one you know to be functional, or connect a backlight lamp you know to be functional. If the inverter board works or if the good backlight does not work, you know your original inverter board has gone bad. In most cases testing a good backlight will be easier, as most backlights are universal and will work as long as the connectors match those on your inverter board. To access either of these components, remove your screen bezel in accordance with your manufacturer’s instructions. Once removed, you will see the inverter board beneath your screen. The left side connects to the LCD cable, while the right connects to your backlight. Be sure when installing or removing any components of your machine that you have removed the AC adapter and battery from your machine to prevent shortage or electric shock.

Additionally, if you have a multi-meter you can attach it to the inverter cable connection on the motherboard itself to check that your inverter is receiving power. If you don’t, switching the inverter board or backlight will yield similar results. In some cases, your laptop will have a lid closed switch. If your model does have one, check to make sure that it is not sticking by tapping it repeatedly. If this changes the display of your monitor, your inverter may be fine; however that switch may be cutting off power to your display.

Laptop inverters are specific to each machine and not interchangeable. To replace your inverter, you will need to find the specific part number, which can usually be found in your user manual, or by contacting the manufacturer. For some companies, you can look up the information for your machine and its individual parts online as well. Inverters are generally easy to find at any laptop parts retailer.

Why Does AC Adapter Polarity Matter?

The AC adapter is an important component of any laptop. Without it, it would not be possible to recharge the laptop’s battery, which is essential for portability. The AC adapter also makes it possible to use the laptop without draining battery life, helping extend battery life on long days. Laptop AC adapters are not all created the same, however, and one of the distinguishing characteristics of different AC adapter designs is their polarity.

The polarity of an AC adapter refers to the way that power flows through the cable and into the laptop itself. The power coming from a wall outlet is what is known as alternating current (or AC power), but the power needed by the laptop is known as direct current (or DC power). The AC adapter converts the AC power into DC power at the correct voltage for the laptop.

The polarity of the adapter happens in the connector that is inserted into the laptop directly. The connector is comprised of a tip and a barrel. The tip is essentially the hole in the middle of the connector and the barrel is the larger area surrounding this hole. Power can only flow in one direction, either from the tip to the barrel or from the barrel to the tip. This is what is meant by polarity.

An adapter with a positive polarity means that its tip is positive and its barrel is negative. An adapter with a negative polarity means that its tip is negative and its barrel is positive. There is no standard design, so adapters and devices are often marked with a symbol to show their polarity. The side connected to the center dot is the tip, and the side connected to the symbol shaped like a C is the barrel.

It is important not to plug an adapter with the wrong polarity into a device. It will not supply power, and in some cases can cause damage to the device or the adapter. Visit Spareparts Warehouse to find a compatible adapter for your laptop, or view specific sections, such as Sony Laptop AC Adapters and Toshiba Laptop AC Adapters to find adapters specific to your laptop’s manufacturer.

AMD Ryzen Threadripper: Everything we know so far about this monster CPU

AMD’s Ryzen Threadripper chips could very well be the most powerful consumer CPU ever introduced when it releases in August. With up to 16 cores and 32 threads, Threadripper gives the high-performance Intel products currently dominating high-end desktops something to worry.

The specs we know

  • The Ryzen Threadripper 1950X ($999 on Amazon) features 16 cores with simultaneous multi-threading (SMT) for 32 threads of compute power. The base clock speed of the chip is 3.4GHz, with a 4GHz boost speed.
  • The Ryzen Threadripper 1920X ($799 on Amazon) will feature 12 cores with SMT for 24 threads of compute power. The base clock speed of the chip is 3.5GHz with a 4GHz boost speed.
  • The Ryzen Threadripper 1900X will feature 8 cores with SMT for 16 threads of compute power, similar to the Ryzen 7 1800X but slotting into more capable X399 motherboards. The 1900X’s base clock speed is 3.8GHz with a 4GHz boost speed.
  • All Threadripper chips pack a whopping 64 PCI-E lanes
  • Memory: Quad-channel DDR4
  • Platform: X399 with a new TR4 socket that is incompatible with existing Ryzen chips.
  • All chips are unlocked for overclocking adventures.
  • Can’t be “delided” easily as it uses a solder thermal interface material.
  • Release date: Threadripper PCs will be available for sale on July 27. The Threadripper 1950X and 1920X CPUs will launch on August 10, with the 1900X releasing on August 31.
  • Alienware has the worldwide exclusive on Threadripper systems among large PC manufacturers, but many U.S. boutique builders will offer it as well.
  • Both parts will be 180 watt TDP chips.
  • Ryzen Threadripper CPUs will support up to 1TB of RAM when 128GB LR-DIMMs are used.
  • Threadripper will not ship with an included liquid-cooled cooler as has been rumored. It will include a bracket adapter that works with most liquid coolers.

ryzen threadripper socket

It will support up to 1TB of RAM

No, we’re not kidding. Threadripper shows its server roots and will be able to support up to 1TB of RAM if you populate all 8-DIMM slots with 128GB LR-DIMMs or Load Reduced DIMMs. Unlike today’s Registered DIMMs that use a chip to redrive some of the signals to the memory directly from the CPU an LR-DIMM uses a memory buffer to re-drive all of the data and instruction sets.

None of this comes cheap though. A single 32GB LR-DIMM  DDR4/2133 module costs $1,100, so you can imagine how much a 128GB LR-DIMM will cost when available.

And yup, if you guessed, the typical person doesn’t need 1TB of RAM, but in the “look what I could if I wanted to category,” it’s a major bragging point.

This factoid was actually noticed by Anandtech in a video Alienware published last month.

Best ultrabook laptop of 2017

Dell might be sticking to the adage of “If it ain’t broke, don’t fix it” when it comes to the XPS 13, but that strategy keeps producing the best ultrabook of the bunch. The Kaby Lake XPS 13 shares the same design as its predecessors: a quality aluminium exterior and carbon-fiber top, and that wonderfully compact, bezel-free 13-inch screen.

Dell actually released two updates to the XPS 13 in 2016: The one at the start of the year swapped in a Skylake CPU, added a USB Type-C port that served as an alternative charging port, and offered upgraded storage options. The most recent refresh—and our new pick for Best Ultrabook—keeps the same chassis changes as the Skylake XPS 13, features a jump to Intel’s new Kaby Lake processor, and sports a slightly larger battery. You get improved performance across the board, with a nice bump of an extra half-hour of battery life during video playback.

Kaby Lake戴尔XPS 13

The Kaby Lake version of the Dell XPS 13 maintains that balance between portability, compact size, and performance that we like so much.

Our only lingering complaint is the small keyboard, but overall, you can’t lose with the newest XPS 13. It’s a truly compact ultrabook that punches out of its class.


If looks are more your thing, the HP Spectre 13.3 certainly has a distinct profile: It’s one of the thinnest ultrabooks around. For anyone coveting the streamlined experience of Apple’s 12-inch MacBook, this 13-inch notebook will bring you close while providing superior performance.

You might expect such a skinny laptop to sport a lower-wattage Core i3 or i5 processor, but HP fits a 15 watt Core i5 or i7 processor into this Spectre. That puts it on par with other, chunkier top-tier ultrabooks, like the XPS 13. Combined with its 256GB M.2 SSD, it runs smoothly and swiftly during typical office drone work (word processing, spreadsheet editing, web browsing, etc), without any heavy throttling of performance during CPU-intensive tasks. HP also made the ports count: While there are just a few, you get not one but two Thunderbolt 3 ports, as well as a USB-C port.


The HP Spectre 13.3 is one of the sleekest ultrabooks around.

The drawbacks of this modern and sleek notebook are its battery life, which is modest due to its smaller battery, and its wider frame. (The Spectre 13.3’s hardware and cooling configuration requires a certain amount of space—HP’s engineering is impressive but can’t defy the laws of physics.) It’s for those reasons that we prefer the Dell XPS 13, but this laptop is still a very fine companion.

Galaxy S8 battery life tips: How to control battery drain

The Galaxy S8 and S8+ are two of the best Android smartphones available, but if you’re going to get any use out of features like Bixby Voice and Samsung’s stellar camera, you’ll want to implement a few power-saving strategies.

Fortunately, Samsung bundled in a helpful power-saving mode to keep the Galaxy S8’s battery steadily pumping throughout the day. We’ll teach you how to set it up, as well as how to implement some best practices for prolonging the life of your shiny Samsung phone.

Galaxy S8

The best part is that you don’t need to download anything to improve the health of your Galaxy S8’s battery. All you have to do is read on.

  • Get rid of battery-sucking apps
  • Set up power saving mode
  • Get notified of bad behavior
  • Go low resolution
  • Automatic brightness isn’t always a savior
  • Ditch the always-on display
  • Ditch the Assistants, too
  • Keep the screen off

What to do when your laptop’s touchpad stops working

When your laptop’s touchpad stops responding to your fingers, you’ve got a problem. Have you ever tried to use a Windows PC without a mouse, touchpad, or other pointing device? It’s all but impossible.

If the problem just started, reboot your computer and see if that fixes it. (Yes, I know that’s painfully obvious, but we all sometimes overlook the obvious.) If that doesn’t work, try these solutions.

First, make sure you haven’t accidentally disabled the touchpad. In all likelihood, there’s a key combination that will toggle the touchpad on and off. It usually involves holding down the Fn key (which is probably near the lower-left corner of the keyboard) while pressing another key.

But what other key should you press? It’s probably one of the function keys (F1 through F12), although it might be something else. Examine the keyboard, paying particular attention to the little icons (usually blue) on some of the keys. Look for an icon that might suggest the touchpad.

Unfortunately, not all touchpad icons are easy to figure out. I never would have guessed the one on my old Lenovo X220. I found it by searching on the model name and number plus “disable touchpad.” The answer, by the way, was F8. I had to search the answer again for my newer Lenovo Yoga 900, where it was F6. If you can’t guess the icon, I suggest you do the same.

If that doesn’t fix the problem, check the touchpad settings. In Windows 7 or 8, go to the Start menu or the search charm and type mouse settings. Select Change mouse settings (there are other options that are very similar, so pick the one with that exact wording). In Windows 10, click the Windows key and go to Settings > Devices > Touchpad. This brings you to the Touchpad settings page, where you can confirm the touchpad is enabled and check other options.

If that doesn’t help, you may need a new driver. Go to your laptop manufacturer’s website and search for your model number and the words touchpad driver. See if there’s a driver you can download and install.

If none of these suggestions work, you’ve got a hardware problem. Assuming you’re not ready to try this sort of repair yourself, you have two options: You can send the laptop to a shop for repairs, or you can buy a small, wireless mouse and use that in its place.

Intel’s 8th-gen Core CPUs could boost laptop performance by 40 percent

Updated to add details of the rumored black Surface Book based on the 8th-generation Core chips, as well as Intel’s desktop processors.

intel 8th gen family logo

For the first time, Intel’s upcoming 8th-generation Core CPUs will feature quad-core processors aimed at ultrabooks, offering performance as much as 40 percent faster than in the previous generation, the company said.

Intel hasn’t disclosed the prices of its four new 15-watt 8th-gen Core U-series chips, though the company revealed Monday how fast they’ll run: The slowest Core i5-8250U will run at 1.6GHz, with a boost clock of 3.4GHz; the fastest Core i7-8650U will run at 1.9GHz, boosting up to 4.2GHz.

All four U-series chips include four cores and eight threads. PCs using the new 8th-gen Core chips should begin shipping soon, Intel said, with about 80 new system designs ready to go by the 2017 holiday season.

The far more interesting story, at least for enthusiasts, is how Intel has loosened the definition of “generation,” as a slowing Moore’s Law has thrown off the company’s legendary tick-tock manufacturing process. These 8th-generation CPUs are not the upcoming Coffee Lake, as previously expected. Intel characterizes its new chips as a “Kaby Lake refresh,” referring to the current Kaby Lake chips as “prior generation” parts. Here’s another surprise: Both Coffee Lake and the upcoming 10nm Cannon Lake chips will also be part of Intel’s 8th-generation Core branding.

Confused? Let’s sum up: Intel’s 8th-generation Core chips will include three separate chip architectures and two process technologies, all under a single brand name. Whew!

A new crop of HP laptops flip or spin, and run Windows, Chrome or Android

HP announced a versatile lineup of PCs and PC-shaped things on Monday (Taipei time) at Computex, embracing the new normal in the world of PCs—which is, nothing’s normal.

hp computex primary copy

A year ago, the PC diversification drive was just getting started, but now it’s in full swing. You want a laptop that can flip over with a 360-degree display hinge? HP’s got one. What about a laptop that can split in half? HP’s got one. Or maybe it looks like a laptop, but it runs Chrome or Android—HP’s got some of those as well. It’s also got plain ol’ Windows laptops and PCs, but that’s not where the excitement is anymore.

Let’s start with the hottest trend, which is notebooks that can flip all the way over to turn into a tablet, following the lead of Lenovo’s Yoga series. HP debuted the Pavilion x360 with a full-rotation hinge at Mobile World Congress in Barcelona. Now it’s got more fleshed-out specs, plus a fancier version that will carry HP’s Envy moniker.

The Pavilion x360 will have a 13.3-inch touch display and your choice of graphics-oriented AMD A6, A8, or A10 CPUs, or more battery-efficient Intel Core i3 or Core i5 CPUs. Speaking of battery life, HP specs it at up to 8.25 hours with the Intel chips, but up to only 6.25 hours with the AMD chips.

The Pavilion x360’s memory will run up to 8GB, and hard-drive storage will range from 500GB to 1TB. The Pavilion x360 will weigh about 4.3 pounds and come in red or silver case colors. The AMD versions will cost $630 and be available on July 9, while the Intel-based models will cost $600 and be available July 20.

The Envy x360 will be physically bigger than its Pavilion cousin, sporting a 15.6-inch display, a heavier 5.8-pound weight, and Intel Core i3-i7 processors. It’ll be configured with up to 8GB of RAM and up to 1TB of storage, including a hybrid option. Silver will be its sole case coloring. HP says the battery will last up to 7 hours. HP did not specify a ship date, but the price will be $680.

HP built several improvements into the new Split x2 hybrid, including a fanless design. Thanks to the advent of thinner hard drives, HP was also able to shift the main storage from the keyboard side to the tablet side, so users won’t be separated from their data regardless of the mode.

The Split x2 configurations will offer Intel Bay Trail and Haswell CPUs, 4GB to 8GB of RAM, and up to 500GB of hybrid storage. The 13.3-inch tablet side weighs 2.45 pounds, but the full unit with keyboard attached weighs 4.3 pounds. The tablet alone lasts 5.25 hours per HP’s spec or 7.75 hours with the keyboard (which has its own battery) attached. Colors will include white, silver, and red. The Split x2 will be available July 16th for a starting price of $600.

Less than a year after HP debuted the Chromebook 11 (with 11.6-inch display) it’s giving the line a look more similar to that of its Chromebook 14 cousins (with 14-inch display). Gone are the shiny white and classic black of the original version, designed in collaboration with Google. The new Chromebook 11 will come in Ocean Turquoise or Snow White.

The specs remain simple: a Samsung Exynos 5250 CPU, up to 2GB of RAM, and 16GB of local storage. It will weigh a pleasant 2.69 pounds, and HP says the battery will last up to 6.25 hours. HP set the price at $249, but a ship date has yet to be announced.

PC-shaped Android devices popped up at Computex in 2013, and a light trickle of models has come out since then. A recent roundup of Android AiOs shows how vendors are still experimenting with this fairly new concept.

HP introduced its Slate line of Android products last year, starting with a tablet and an All-in-One. This year, a new SlateBook delivers the Android experience in a clamshell design whose black and “sweet yellow” accents make me think it should be called SlateBee. The 14-inch Full HD touchscreen device will be driven by an Nvidia Tegra 4 chip and contain up to 2GB of RAM, and up to 64GB of storage. It will weigh a toteable 3.71 pounds. HP says the battery will last up to 9.25 hours. The new SlateBook will ship on August 6 for a starting price of $429.

I’ll give HP credit this year. It’s been playing catch-up in developing products for a new generation of users. The products it’s unveiled at Computex show that it’s assertively developing even fairly new product lines like the Slate Android devices. It hasn’t given up on its Windows business, but it’s responding to users’ restless search for more versatile form factors and tablet-like talents.

What do you think—is HP innovating, or is it straying too far from its PC roots? Let us know in the comments.

Correction: Due to erroneous press information, the price of the HP SlateBook was corrected from $399 to $429. PCWorld regrets the error.

4 ways to turn off annoying notifications on your Android phone or iPhone

So there you are, doing your best to connect with a friend over a cup of coffee, but you can’t help but notice the pulsing alert on your phone’s touchscreen. What if it’s your babysitter trying to reach you, or a nasty email from your boss?

You surreptitiously unlock your phone to see what the fuss is about—and just like that, you become one of those people who can’t keep their hands off their handsets, even when there’s a flesh-and-blood person in front of them. (Oh, and that message on the screen? It was a promo for a half-off sale. Great.)

The good news is that your Android phone or iPhone boasts a series of tools that can help you concentrate on the people who matter, rather than being distracted by random calls, messages, and alerts.

Read on for four ways to keep your eyes and hands off your phone, starting with…

Let Do Not Disturb mode screen your calls (Android and iOS)

Sure, activating Do Not Disturb mode for iOS (tap Settings > Do Not Disturb, or tap the Do Not Disturb button from the swipe-up Command Center pane) or Android (flick down with two fingertips to reveal Quick Settings, then tap the Do Not Disturb button) is a great way to keep your phone from buzzing during lunch, but you may still find yourself tempted to check your messages. After all, what if your spouse is trying to reach you—or your irate supervisor, for that matter?

Here’s a trick that’ll help keep your mind on your Caesar salad: just set Do Not Disturb to screen your calls and text messages, allowing only the most important ones through. That way, you’ll be confident that your silent Android phone or iPhone isn’t actually ringing off the hook with mission-critical calls, and more likely to pay attention during your lunchtime chat.

For Android:

  • Tap Settings > Sound > Do not disturb > Priority only allows, then pick some options. For example, you can set “priority only” to include incoming calls and texts from contacts, reminders, event alerts, and repeat callers. To restrict call and text alerts to your innermost circle, make sure Calls and Messages is set to Starred contacts only, then go through the Contacts app and star only those contacts who really, truly matter to you. Finally, a Repeat callers setting will allow a caller to get through if they’ve called twice within 15 minutes.
  • To enable Priority mode, flick down from the top of the screen to reveal Quick Settings, tap Do Not Disturb, then make sure the Priority only tab is enabled.
  • Finally, sit back and give your full, undivided attention to a (grateful) friend.

Note: Android’s version of Do Not Disturb boasts three different modes: Priority Only, which blocks specific alerts for apps, calls and texts; Alarms Only, which blocks all alerts except for the Android alarm clock; and Total Silence, which blocks all alerts, no matter what. While the Alarms Only and Total Silence modes will guarantee you a peaceful lunch hour, they may also block critical alerts, calls or alarms. In general, you should stick with Priority Only mode unless you’re certain you don’t want any interruptions, period.

For iOS:

  • Tap Settings > Do Not Disturb > Allow Calls From, then pick the Favorites setting. Once you do, calls and text messages from those on your iOS Favorites list will ring through even with Do Not Disturb mode switched on.
  • You can also pick a specific contact group for the Allow Calls From setting, but you can only set up contact groups using the Mac version of the Contacts app. Open the Contacts application on your Mac desktop, then click File > New Group to get started. As long as you’re syncing your contacts using iCloud, your desktop groups in Contacts will sync up with the Contacts iOS app.
  • You can also enable the Repeated Calls setting, which will allow urgent callers to break through Do Not Disturb mode if they call twice within three minutes.

Enable ‘VIP’ alerts for email messages

There’s little chance you’ll get through an important meeting without glancing at your iPhone or Android phone if your screen is constantly flashing with alerts for new email messages. Follow these steps to ease your email notification overload.

For iOS:

Mail’s ‘VIP’ alerts give you separate notifications for your most important email contacts, perfect for leaving you alone unless a message from a close friend or someone in upper management lands in your inbox.

  • Open the Mail app, back up to the main Mailboxes screen, tap the little ‘i’ next to the VIP mailbox, then tap Add VIP to add a contact to your VIP list.
  • Once you’ve added some names to the list, tap VIP Alerts to manage your VIP notifications. You could, for example, give messages from VIPs a special ringtone or a custom vibration when they arrive in your inbox, or allow VIP alerts—and only VIP alerts—to light up your lock screen.

For Android:

Android doesn’t have its own version of iOS’s handy VIP feature, but you can replicate it using filters in Gmail.

Turn on alerts for Gmail’s Priority Inbox—and off for all your other inboxes (Android only)

If you’re not interested in hacking iOS’s VIP alerts into your Android phone, you can take advantage of Gmail’s secret formula for determining which messages are most important to you.

Using your prior emailing habits as a guide, Gmail’s Priority Inbox sifts through your incoming messages, finds the email that you’re most likely to answer, and puts them into an “Important and unread” folder. Everything else (such as random email promos, newsletters, and other lower-priority messages) goes into the aptly-named “everything else” section of your inbox.

Once that’s done, you can set the Android version of Gmail to alert you only when new messages land in your Priority Inbox—and hopefully, you’ll feel better about leaving your silenced phone alone.

  • First, you’ll need to enable Gmail’s Priority Inbox feature. Open Gmail, tap the menu button in the top-left corner of the screen, tap Settings, pick a Gmail account, then tap Inbox type > Priority Inbox.
  • Tap Manage labels, then make sure that Priority Inbox is the only Gmail label with notifications turned on. (If you don’t see a Sound on, Notify once or similar tag next to a label, then notifications are off for that label.)

Turn off unneeded lock-screen notifications (Android & iOS)

So, you’re in a meeting, your phone is sitting dutifully—and silently—on the table in front of you, and you’re giving your colleagues your full attention. But then it happens: Your phone’s lock screen lights up, and your eyes can’t help but flick down to the display … which is nothing more than a random Facebook update.

Luckily, it’s easy to pare odwn your lock-screen notifications to an absolute minimum—or turn them off completely, even when you don’t have Do Not Disturb or Priority mode switched on.

For Android:

  • To keep your phone’s lock screen from lighting up when notifications come in, tap Settings > Display, then toggle off the Ambient Display setting. Or, here’s another option: Tap Settings > Sound > Do not disturb > Block visual disturbances, then enable the Block when screen is off setting. Doing so will keep alerts blocked by Do Not Disturb from lighting up your phone’s lock screen.
  • You can completely turn off notifications for a specific app by tapping Settings > Notifications. Tap an app, then enable the Block all setting. You can also choose to show an app’s alerts silently—but remember, even silent notifications can be tempting.
  • Another way to disable an app’s alerts is by long-pressing its notification when it appears. When you do, you’ll get the chance to block its alerts or show them silently.
  • While you’re at it, you might also want to turn off your handset’s pulsing notification light—you know, the one that’s saying “Look at me, look at me!” all the time. Go back to Settings > Notifications, tap the Settings button (the one shaped like a gear) in the top right corner of the screen, then toggle off the Pulse notification light setting.
  • Just below the Pulse light notification toggle is a setting that can disable all lock-screen notifications, regardless of whether Do Not Disturb is switched on. If you’re willing to forgo any and all lock-screen alerts, tap On the lock screen, then choose the Don’t show notifications at all setting.

For iOS:

  • To completely turn off an app’s notifications, tap Settings > Notifications, tap an app, then toggle off the Allow Notifications switch.
  • If you only want to disable an app’s lock-screen notifications, leave the Allow Notifications switch on but turn off the Show on Lock Screen setting.