问题
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Liquid Damage - No Power - Possible BB/BB_PMU Problem?Hey guys. I have an iPhone XR that I am working on that suffers from liquid damage and currently does not power on or...
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PS4 Slim - SAD-002 board - No PowerGot a PS4 Slim - motherboard model SAD-002 with no power after a possible lightning strike. No beeps, no lights, nothing....
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iPhone XR | Cracked screen, Front Camera Not Working, Face ID WorksGot an iPhone XR in the other day for a screen replacement. The screen was dropped and whatever it fell on, made a pretty...
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Need Help Finding LCD FPC Connector for Nintendo SwitchGot a Nintendo Switch LCD FPC connector that is damaged and I need to find a compatible replacement from mouser, digikey,...
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No HDMI to TV using Nintendo Switch Dock after USB-C Port ReplacementSwitch had a damaged USB-C port with broken pins. Replaced the USB-C port with a new one and now it charges fine and...
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Kenwood DXN690HD - Random Freezing & Multi-Colored Lines On DisplayI have a customer who has brought a DNX690HD car stereo to me to try and troubleshoot/fix for them. Car stereos are not my...
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Earpiece speaker doesn't work - NOT flex cable.I have an iPhone 7 Plus that has never had previous repair. All Apple OEM parts remain intact. There are no signs of...
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Distorted display, colored lines in LCD even after replacement.Got a tricky one here. Customer brought in an iPhone 7 that was dropped a few months back which caused the glass to break...
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Home button not working even after charging dock replaced, but chargesI have an iPad 3 WiFi only that came to me originally with a no charge problem. Upon visibly inspecting the charging port,...
问题解答论坛
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回答“When I turn my screen off and back on screen becomes unresponsive.”To anyone facing this issue, the problem seems to lie in the replacement screens themselves. A workaround is to go into Settings > System > Gestures and turn OFF “Double Tap To Check Phone" After turning this gesture off, the phone works normally.
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回答“My trigger is broken and it’s loose”It looks like the tension spring or the bar it sits on is damaged, misaligned, or has launched itself completely out of the controller altogether. Did this problem occur after you opened the controller up for another reason or did it start on it’s own without ever opening the controller first? I would check to see if that spring/bar is in fact present and correctly aligned. That seems to be your issue. While I am sure there are many places to buy a replacement spring/bar, here is one place you can buy it if you do need to replace it: https://www.dhgate.com/product/lt-rt-button-spring-for-xboxone-xbox-one/396937220.html#seo=WAP
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回答“Home button doesn't click properly”The missing home button gasket is most likely your issue. Definitely replace it, but while we’re in there, check the bracket itself and make sure that the little raised piece on the bracket is still in tact. This is what the actual click mechanism on the home button pushes into to make the click. I’ve attached a picture and circled the area I am referring to. I’ve seen a couple of times where this piece broke/fell off so there was nothing to press into the click mechanism on the home button itself. Doesn’t hurt to take a look while you’ve got it off. As you’ve already guessed, the missing gasket is most likely the problem. When adhered to the screen properly, it allows the button to “spring back” towards the screen after you’ve pressed it. Without it, with every button press, you’re sort of brute force pushing the button into the bracket, which could account for the screws working themselves loose. You want to get the screws “finger tight”. Don’t torque them down with any sort of force, but just enough you...
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回答“Lenovo Yoga 2 won't turn on, hot beeping heatsink”Several possibilities here. The battery could have been damaged so it is not providing the required power to the board. You could try disconnecting the battery and plugging in your AC power adapter alone and try running the computer. The high temperatures inside the car may have warped or flexed the BGA solder connections underneath the Intel CPU or the soldered on memory module ICs just enough to cause them to not be solidly soldered to the motherboard - even causing what’s called “micro-fractures”. The process of “reflowing” may fix this problem, but without knowing for sure if that is what happened, it could make things worse. If it were me, I’d use a multimeter and try to measure power at key points on the board to see if it appears to be getting proper power. Measure the voltage coming out of the battery and at the battery connector when plugged in and on. You may be able to find schematics for the board if you Google the motherboard model number along with “schematics boardview”. That would...
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回答“Blades do not engage when PTO switch is activated.”Without the exact model of your mower, it’s sort of hard to help with any exact information, but check the PTO switch itself. It may have been damaged while you were connecting the battery. Failing that, I would check the clutch solenoid. Good luck. Also, this YouTube video might prove helpful in troubleshooting the PTO switch: https://www.youtube.com/watch?v=RLavJ6Qe...
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回答“My PS4 won’t leave safe mode”To enter Safe Mode without a working power button, remove the entire top cover of the PS4 and look for the small gold square underneath where the power button sits. This is your power button. It responds to touch, so you can use your finger or a small plastic tool to press this gold square to power on the PS4, power it off, or enter Safe Mode. Once in Safe Mode, try updating the firmware as it suggested you do to see if it corrects the problem.
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回答“change of default password”Launch a web browser and enter the IP address: 192.168.0.1 It should prompt for admin login. Default username is “admin” default password is blank. Now that you are logged into the router, you can change the default Wi-Fi password, the default admin password, or make any other changes to the router that you need.
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回答“After succecfull screen replacement, iPhone is not working.”You might want to open the phone again to double-check your connectors (battery, LCD, lightning dock connector, front camera flex). How was this phone damaged originally? Drop damage? Liquid damage? Run over with your car? Depending on what happened, you might have more damage to repair than just your damaged screen. I’d start with simply checking your connections. Open the phone and disconnect the battery first. Carefully lift the connectors and reseat them to ensure they all have a solid connection to the logic board. Without additional information or some diagnostic tools on your part, it’s difficult to say what the problem could be. Since you have already opened the phone to perform the screen replacement, the likely place to start troubleshooting is to go back and check your work.
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回答“Can I use my phone after it has been water damaged?”To minimize further damage to the phone, it is recommended you power off your iPhone (and ideally, disconnect the battery) until you can repair the liquid damage. Continued use of the iPhone may cause additional damage to the phone that will only increase the cost of repair.
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回答“Need help Installing new HDD and OSX with old info copied from old HD”Install the new HDD as usual and boot to your El Capitan install USB. Enter Disk Utility and click your hard drive located on the left hand side to highlight it and then choose Erase Enter a name for your hard drive (default is “Macintosh HD” but you can name it whatever you want.) and choose your format (usually “Mac OS Extended (Journaled)”) and GUID partitioning table. Exit Disk Utility. Proceed to install macOS. Once installed, you will be asked if you wish to transfer data. Connect your old hard drive to the MacBook Pro and then choose “From a Mac, Time Machine backup, or another startup disk”. and click continue. Select the data you wish to transfer (typically everything), assign a password to the migrated user account, and then allow it to complete. Once complete, disconnect the external hard drive and you should be good to go.
