如何修复破碎的手机或平板电脑屏幕（ mobile tech smartphone)

如何修复破碎的手机或平板电脑屏幕（ mobile tech  smartphone)

手机或其他移动设备破损屏幕的修复成本可能很高，但是一些廉价的“DIY”方法可以避免去往维修中心，并挽救您的平板电脑或手机。

第三方维修店通常会更换平板电脑上的玻璃，价格大约为100-200美元，具体取决于型号。更换平板电脑的触摸屏则可能需要多花费$ 50- $ 75。

用功能良好的触摸屏更换破裂的玻璃要便宜得多。通常，您可以在网上以每部电话6至20美元的价格找到供应商。如果这样操作，平板电脑更换数字转换器的成本约为50美元或更多。

一旦掌握了操作技巧，更换手机上的玻璃相对容易且便宜。而由于更大的尺寸和增加的组件，平板电脑的操作程度更高。

如果您的工作台运作不正常，工具方面则可能需要额外的金钱支出。根据所涉及的设备，您需要一个电话开启器撬动工具，一些小镊子来处理内部的小电缆，梅花螺丝刀，平头螺丝刀和精密螺丝刀套件。

在该清单中添加可调节吹风机或热风枪，以软化粘着的电话部件。还要添加剪刀，双面胶带，罐装空气和工作手套。

评估维修需求

修复智能手机屏幕上的裂缝是第一件事。通常，屏幕事实上根本不会破裂。购买手机时，您可能已经安装了玻璃屏幕保护膜。

小心地撬起覆盖设备正面的塑料挡板。可能其下方的屏幕完好无损。

平板电脑通常不是这种情况。这些设备上的所谓屏幕保护膜是耐用的透明膜。

胶片盖可能变得混浊或经受刮擦。它们通常有助于吸收掉落在平板电脑上的物品带来的冲击，从而降低其下方触摸屏玻璃破裂的风险。

剥下旧的胶片盖并用新的盖代替它相对容易。问题解决了！

修复与替换

当罪魁祸首确实是屏幕损坏时，选择以下三种方法之一可以帮助您解决问题。您也许可以修复损坏而不是更换损坏。

例如，是否因误用粗糙的清洁液或粗糙的纸巾清洁屏幕而使屏幕混浊或损坏？如果是这样，有解决办法。

屏幕只是破裂还是破裂？就像是被砸碎的巨大蜘蛛裂缝一样？使用商业产品Sugru，您可以更轻松地修复手机或平板电脑上破裂的屏幕。两种类型的设备上完全破裂的屏幕都是更换屏幕的可靠选择。

不能抹除的污迹

如果您的手机或平板电脑屏幕呈现出因清洁不良或操作不当而磨损的迹象，请使用疏油涂层套件将其状态恢复到几乎全新的状态。这是一种防油涂层，可保护屏幕，同时增加光滑度并减少指纹。

该涂层是含氟聚合物基固体的薄层，类似于聚四氟乙烯，粘结在玻璃上。您可以从各种电子供应商店和在线商店购买涂料套件。

您需要以下工具来涂覆疏油涂层：超细纤维清洁布，拉链塑料储物袋，70％的异丙醇。

如下进行操作：

1.用异丙醇彻底清洁表面。然后用干净的超细纤维布擦干屏幕。

2.准备擦拭手指。涂油时，疏油涂层的液体溶剂会很快蒸发，因此，从一开始就需要快速操作。用保鲜膜或三明治袋包扎一根手指。用此手指在屏幕上擦涂液。

3.在屏幕表面上涂抹10-15滴涂料。如果手机或平板电脑的屏幕表面较大，请在屏幕的一部分上滴10滴，一次在一个部分上工作。

4.通过用塑料覆盖的手指在表面上擦拭，轻而迅速地分配涂层，直到液体蒸发为止。

5.用干净的超细纤维布擦干屏幕。然后给涂层干燥的时间。 8-12小时内请勿触摸屏幕，以使涂层粘结到表面上。

6.粘合时间结束后，请使用干净的超细纤维布擦拭触摸屏上残留的所有残留物。

7.重复此过程2-3次，以充分提高疏油涂层的性能和薄膜的耐用性。

另外两个选择

如果您的问题是智能手机屏幕或平板电脑玻璃上的细小划痕和裂缝，那么可以采取具有不同程度可靠性的补救措施。您可以使用家用橡皮擦或真实的橡皮擦。

魔术橡皮擦产品仅需几秒钟即可清除屏幕划痕。弄湿清洁垫的一角，并施加轻微的摩擦力。

铅笔橡皮擦在消除划痕方面也相当有效。只需使用橡皮擦左右刮擦约60秒钟。然后上下摩擦60秒钟。

牙科保健用品替代

牙膏填满缝隙真的有效吗？我将该修复程序归类为更“虚构”的思维，但我知道有人发誓这种方法是一种行之有效的廉价修复程序。

我认为牙膏适用于细小划痕和裂缝，可以作为临时性解决方案。

对于经常使用的触摸屏，它不是永久性的解决方案。最好的情况是，粘贴以使裂纹不那么明显。

Sugru辅助

Sugru是可模塑的胶水套件，用于修理而不是更换破裂的屏幕。实际上，发明该产品时并未考虑到手机和平板电脑的维修问题。它的预期目的是作用于需要将表面粘合在一起并填充表面的一般维修领域中。

我确信存在类似的柔韧性胶水，但我认为偶然发现的Sugru是一个很好的起点。

它可以很好地根据屏幕损坏的严重程度解决从手机或平板电脑屏幕边缘散布的裂缝。但是，对于散布在整个屏幕上的大裂缝（蜘蛛蜘蛛裂缝随时间推移而趋向），它充其量只是短期解决方案。

按着以下次序操作：

1.用柔软的清洁毛巾擦拭并清洁屏幕。在此过程中，请小心，不要捡任何散落的玻璃。

2.在要修补的区域周围使用透明胶带。手机开机时，这样效果最好。

3.在胶带上标记以显示补丁区域周围的边框。这样可以防止Sugru修补胶水流到您不想要的地方。

4.将少量补丁粘贴到屏幕的破裂区域。确保将补丁贴薄。根据需要逐渐添加更多。

翻新和替换

如果您的手机或平板电脑屏幕遭受了更严重的损坏，则全面修理是除了购买新设备外的唯一选择。由于紧凑的内部设计，维修设备LCD屏幕的过程非常复杂。

维修过程涉及完全拆卸手机或平板电脑的外壳。如果更换的屏幕带有顶部框架，则相对容易。

否则，您可能必须密封各层，以免损失结构强度，并防潮/防尘。您可以使用密封垫来查看特定设备的大小，也可以使用双面胶带。手机屏幕更换的一种更简单的解决方案是使用B-7000 / T-7000胶水。

在卷起袖子开始操作之前，请采取一项重要的安全措施。购买并使用防静电腕带和防静电垫。这将确保在拆卸和重新组装设备时不会意外炸掉任何电子组件。断开电池连接并不总能保证不会发生静电放电。

第一步是拆除设备，以便您评估损坏程度并确定要订购的屏幕部件。找到液晶显示屏的型号。在网上使用此号码搜索查找替换屏幕。

零件名字或型号通常印在粘贴在屏幕上的传感器电缆的标签上。将屏幕与设备的其余部分分开后，即可使用此电缆。沿着边缘小心地从屏幕背面断开电缆连接器。

拆解

步骤1：卸下设备的后盖，然后拉出主电池。

步骤2：松开现在露出的所有固定电缆，例如摄像机电缆。如果扣环裸露，则卸下电缆。松开扣环后，这些电缆仅会从某一个裸露的插座中滑出。带状电缆通常通过粘合剂固定在框架和零件上，因此请轻轻拉动以松开。

步骤3：拧下将包含主板的后框架，固定到包含LCD的机箱的Phillips或Torx螺钉上，然后将这些螺钉放在碗中确保安全。然后通过轻轻地小心地将二者分开，将后框架与机箱分离。

步骤4：拆下因零件分离而露出的所有其他电缆组件。为需要将哪条电缆将重新连接到何处留下视觉提示。例如，将它们按拆卸顺序正面朝上放置在工作面上，或使用数码相机或智能手机拍照。

步骤5：拧下第二批螺钉，从前面框架或挡板和玻璃组件上卸下装有LCD的机箱。将第二组螺丝存放在第二个碗中。卸下其他零件，例如照相机。

步骤6：请勿触摸LCD面板。通过在粘合剂连接处挥动热风枪并将其拉开，将现有的，损坏的玻璃与边框或前框架分开。戴上手套，因为该过程涉及进一步破碎玻璃。

提示：在加热枪松开粘合剂时要耐心等待，并在取下玻璃时注意不要弄碎挡板或前框架。您需要完整的挡板。

更换屏幕

步骤1：将新的双面胶带粘贴到挡板上失去粘性的区域。尽可能使用现有的粘合剂。请勿让胶带覆盖玻璃的可视部分。

步骤2：寻找任何泡沫填充物或密封垫并重新连接。请勿触摸玻璃的内部。组装后您将无法消除指纹。

步骤3：穿过数字转换器电缆，然后将新的数字转换器玻璃牢固地按入到位，然后将其重新安装到挡板上。然后用罐装空气清除LCD和玻璃上的灰尘。

步骤4：重新安装所有零件，例如相机。然后按顺序重新组装机箱，框架等。

最后的想法

您可能需要组装和拆卸几次。两组螺钉使用相似的孔，所以很容易将最初的一组螺丝插入错误的孔中。仅当第二套因为您已经使用过孔而不合适时您才会意识到。

连接电缆时，请查找牢固的连接。确保首先打开卡扣。通常是向上打开的。

通常，牢固的按扣表示组装良好。重新粘贴任何现有的金属胶带。数一下螺丝。如果还有剩余，请重来。

更换损坏的触摸屏和数字化仪面板不是火箭科学，但是此过程确实需要仔细注意细节。遵循视觉指南和屏幕截图可以加大第一次就成功的可能性。

How to Fix Your Phone or Tablet's Broken Screen

racked or broken mobile device screens can be costly to fix, but a few inexpensive do-it-yourself strategies can eliminate a repair shop visit and salvage your tablet or phone.

Third-party repair shops typically replace glass on a tablet for about US$100-$200, depending on the model. Replacing the tablet's touchscreen can cost $50-$75 extra.

Replacing the cracked glass with a functioning touchscreen is much cheaper. You usually can find suppliers online for $6 to $20 for a phone. A tablet replacement digitizer can cost about $50 or more if you perform the work.

It is relatively easy and cheap to replace the glass on a phone once you get the hang of it. Tablets are a bit more involved because of the larger size and added components.

Tools might require an additional monetary outlay if you do not have a well-functioning workbench. Depending on the device involved, you need a phone opener pry tool, little tweezers to deal with small cables inside, a Torx screwdriver, flat-head screwdriver and a precision screwdriver kit.

Add to that list either a variable hair dryer or a heat gun to soften glued phone parts. Also add scissors, double-sided adhesive tape, canned air and work gloves.

Assess Your Repair Needs

It is first things first when it comes to fixing cracks on a smartphone's screen. Often, the actual screen is not cracked at all. You may have installed a glass screen protector when you purchased the phone.

Carefully pry off the plastic bezel that covers the front of the device. Chances are the screen under it is perfectly intact.

That usually is not the case with tablets. So-called screen protectors on those devices are durable clear transparent film.

The film covers can become cloudy or scratched. They usually help absorb shock from items dropping on the tablet to lessen risk of cracking the touchscreen glass under it.

It is relatively easy to peel off the old film cover and replace it with a new cover. Problem solved!

Fix vs. Replace

When the culprit really is a damaged screen, choosing one of the next three approaches can help you solve the problem. You might be able to repair the damage rather than replace it.

For instance, is the screen clouded or otherwise damaged from your mistaken use of harsh cleaning fluids or coarse paper towels to clean the screen? If so, there is a fix for that.

Is the screen merely cracked or full-out broken -- as in massive spider cracks from being smashed? You can cure a cracked screen on a phone or tablet more easily with Sugru, a commercial product. A fully cracked screen on either type of device is a solid candidate for a screen replacement.

Unsmearing the Smudges

If your phone or tablet screen shows signs of cleaning abuse or wear from heavy handling, return its condition to nearly new with an oleophobic coating kit. This is an oil-repellent coating that protects the screen, along with adding smoothness and reducing fingerprints.

The coating, a thin layer of fluoropolymer-based solids, is similar to Teflon and is bonded to the glass. You can buy the coating kit from a variety of electronic supply stores and online outlets.

You need these tools to apply the oleophobic coating: microfiber cleaning cloths, zipper plastic storage bags, 70 percent isopropyl alcohol.

Follow these steps:

1. Thoroughly clean the surface with isopropyl alcohol. Then wipe the screen dry with a clean microfiber cloth.

2. Prepare a wiping finger. The oleophobic coating's liquid solvent evaporates very quickly when applied, so once you start, work quickly. Wrap one finger with plastic wrap or a sandwich bag. Use this finger to rub the coating liquid onto the screen.

3. Apply 10-15 drops of the coating to the screen's surface. If the phone or tablet screen has a large surface, apply 10 drops to a portion of the screen, working on one portion at a time.

4. Lightly and swiftly distribute the coating by wiping your plastic-covered finger over the surface until the liquid evaporates.

5. Wipe the screen dry with a clean microfiber cloth. Then give the coating time to dry. Do not touch the screen for 8-12 hours to allow the coating to bond to the surface.

6. When the bonding time is completed, wipe off any residue remaining on the touch screen with a clean microfiber cloth.

7. Repeat this process 2-3 times to fully maximize the oleophobic coating performance and film durability.

Two More Options

If your only complaint involves tiny scratches and cracks on a smartphone screen or a tablet glass, there are remedies that work with varying degrees of reliability. You can use a household eraser pad or an actual pencil eraser.

Magic eraser products clean up screen scratches in just a few seconds. Moisten a corner of the cleaning pad and apply gentle rubbing pressure.

Pencil erasers also work reasonably well in making scratches disappear. Simply rub the scratch left and right with the eraser for about 60 seconds. Then rub it up and down for 60 seconds.

Dental Care Alternative

Does using toothpaste to fill in the cracks really work? I put that fix in the category of more "mythful" thinking, but I know people who swear that this method is a cheap fix that works.

I consider toothpaste as a scratch remover a temporary fix. It works on small scratches and cracks.

It is not a permanent solution for a touchscreen that is constantly handled. At best, the paste-over process will make the cracks less obvious.

Sugru to the Rescue

Sugru is a moldable glue kit for repairing rather than replacing cracked screens. Actually, the product was not created with phone and tablet repairs in mind. Its intended purpose is more in the line of general repairs where bonding surfaces together and filling surfaces are needed.

I am sure similar pliable glues exist, but having stumbled on Sugru, I see it as a good starting point.

Depending on how badly the screen is damaged, it can be a good solution for cracks that spread from the phone or tablet screen's edges. However, for massive cracks that spread over the entire screen -- as spider cracks tend to do over time -- it will be a short-term fix at best.

Follow these steps:

1. Wipe and clean your screen with a soft cleaning towel. Be careful not to pick up any loose glass in the process.

2. Use transparent adhesive tape around the area to be patched. This works best when the phone is turned on.

3. Mark over the tape to show the border around the patch area. This keeps the Sugru patch from getting where you do not want it.

4. Apply small quantities of the patch to the cracked area of the screen. Be sure to apply the patch thinly. Gradually add more as needed.

Rip and Replace

If your phone or tablet screen has suffered more serious damage, full scale surgery is the only option other than getting a new device. Repairing the device's LCD screen is a complicated procedure due to the compact internal design.

The repair process involves completely dismantling the phone or tablet's outer casing. It is particularly easy if the replacement screen comes with a top frame.

Otherwise, you may have to seal the layers to avoid loss of structural strength and moisture/dust protection. You can use either sealing pads for the size of the particular device at hand or double-sided sticky tape. A simpler solution for phone screen replacement is to use B-7000/T-7000 glue.

Before you roll up your sleeves to get started, take one huge safety step. Buy and use a static wristband and a static guard mat. This will ensure against accidentally frying any electronic components while disassembling and reassembling the devices. Disconnecting the battery is not always a guarantee that static discharge will not happen.

The first step is to tear down the device so you can assess the extent of the damage and determine what screen parts to order. Locate the model number for the LCD screen. Use this number in an Internet search to find a replacement screen.

The part or model number usually is printed on a label adhered to the sensor cable attached to the screen. You can access this cable after you separate the screen from the rest of the unit. Carefully disconnect the cable connector from the backside of the screen along the edge.

Doing the Teardown

Step 1: Remove the device's back cover and pull the main battery.

Step 2: Loosen any stuck-on cabling that is now exposed, like the camera cable. Then remove cables if the clasps are exposed. These cables simply slide out of any exposed sockets after clasps are released. The tape-style cables are often held onto the frame and parts by adhesive, so tug gently to release.

Step 3: Unscrew the Phillips or Torx screws that hold the motherboard-containing back frame to the LCD-containing chassis and place the screws in a bowl for safe-keeping. Then separate the back frame from the chassis by gently and carefully pulling the two apart.

Step 4: Remove any further cable assemblies that have become exposed by the separation of parts. Maintain visual cues as to which cable to reattach where. For example, place them on the work surface face-up in the order of removal. Or take photos with a digital camera or smartphone.

Step 5: Remove the LCD-containing chassis from the front frame or bezel and glass assembly by unscrewing a second batch of screws. Store the second set of screws in a second bowl. Remove any further parts such as the camera.

Step 6: Don't touch the LCD face. Separate the existing, damaged glass from the bezel or front frame by waving the heat gun over the adhesive join and pulling apart. Wear gloves here because the process involves further breaking the glass.

Tip: Be patient while the heat gun loosens the adhesive and be careful not to break the bezel or front frame while removing the glass. You need the bezel intact.

Replacing the Screen

Step 1: Attach fresh two-sided tape to areas of the bezel that have lost their stickiness. Use the existing adhesive where possible. Do not allow tape to overlap the visual part of the glass.

Step 2: Look for any foam padding or seals and reattach. Do not touch the inside of the glass. You won't be able to get rid of the fingerprints after assembly.

Step 3: Thread the digitizer cable and remount the new digitizer glass to the bezel by firmly pressing it into place. Then remove any dust from the LCD and glass with canned air.

Step 4: Reattach any parts, like the camera. Then reassemble the chassis, frame and so on, in order.

Final Thoughts

You may have to assemble and disassemble a few times. The two sets of screws use similar holes. It is easy to insert the initial set of screws into the wrong holes. You will realize that only when the second set does not fit because you already used the hole.

Look for solid connections when attaching cables. Ensure that the clasps are open first. Usually the up position is open.

In general, firm snaps indicate a good assembly. Always reapply any existing metallic tape. Count the screws. If you have any left over, backtrack.

Replacing damaged touchscreens and digitizer panels is not rocket science, but the process does require careful attention to details. Following visual guides and screenshots can make the difference between initial success and having to make second or third efforts.

Visit iFixit for visual support. It offers many models of phones and tablets along with instructions on how to open the devices with the right tools.

https://www.technewsworld.com/story/86643.html

Jack M. Germain