Where would you start figuring out a phone repair.
I have my perfect condition redmi note 8 and is stopped displaying anything. Recently the screen had stopped. It buzzes when I hold the power button as if it turns on. And the same if held for a while like it's turning off. I also get a charging light but just no screen.
I've repaired loads of phones but only with obvious faults like a cracked screen. Any way to tell what's going on here? I've taken the back off and can't see anything obvious
I don't want to go buying parts willy nilly .
Any technical help gratefully received
Thanks
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So in the middle of the day, I pulled my phone out of my pocket to check the time. I was faced with a black, backlit screen. It'd turn off and back on every 5 seconds or so. I pulled the battery, attempted to turn it on, but I was faced with the same black, backlit screen. It continued the cycle.
I tried powering it on in bootloader mode. This caused the backlight to stay on continuously, but again, nothing on the screen. No M logo, not even a faint hint of text.
Is this phone done for?
It may be possible that it is just the screen, however I do not have the phone to look at it. If you plug it in when it is powered on do you get a recognized device on windows/linux?
The wires connecting the LCD screen could also be loose. If you are at all tech savy you might try taking it apart and looking at it.
The Droid is an amazing phone, but it is getting outdated pretty fast. I still use the Moto Droid and have no problems.
Do you have the insurance with Asurion? if so you can send it in and they charge like $50 to replace the phone.
xslntx said:
So in the middle of the day, I pulled my phone out of my pocket to check the time. I was faced with a black, backlit screen. It'd turn off and back on every 5 seconds or so. I pulled the battery, attempted to turn it on, but I was faced with the same black, backlit screen. It continued the cycle.
I tried powering it on in bootloader mode. This caused the backlight to stay on continuously, but again, nothing on the screen. No M logo, not even a faint hint of text.
Is this phone done for?
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Click to collapse
I would contact the manufacturer/carrier if there is still a warranty. If not, I would still contact to see if there is anything they can recommend, or if they will fix it for a minimal fee. Otherwise, look up how to take apart your milestone/droid on these forums and check for a loose connection or something. If all else fails, you may be able to buy a replacement screen. Those are the steps I would follow, but contact motorola/carrier first no matter what.
Good luck.
So I recently cracked the screen on my HTC One m7. I bought a replacement screen and front housing. The screen was so far beyond repair that I couldn't shut off the phone prior to starting the replacement. I tried waiting for the phone to die but after two days I became impatient and did it anyway (essentially the phone lost power when I disconnected the battery). After transferring all parts into the new housing and being what I though as diligent putting all parts and connections back in their place, tried to power the phone back on. all that happens is that the back and home buttons flash and then I hear what sounds like the audio for when the phone powers on. The screen stays black and then phone doesn't technically turn on. I know this because I have missed messages and the green led light would be flashing if it was. Therefore, at this point I'm not certain that the new screen works or if I've connected it right. I've tried the numerous boot tricks with the volume buttons, nadda. I have had the phone on a charger for a full day and the same problems. (Disclaimer: I don't have the original charger, but I have been using this one for a long time). I do see the red charging led if I wiggle the charger in the input, but also just recently I saw a green led when doing this, which when the phone was working was a sign that it was fully charged. If anyone has a solution to my problem that would be great. I'm also interested on what's wrong, why this is happening, what might have caused this behavior? What do the flashing home and back buttons mean?
Howdy,
I've had the same problem, but my phone was shutdown allready. When I replaced the front screen, the phone won't boot. I would like to know if its anyway to get the files from sdcard down?
Thanks for the support!
So two/three weeks ago I dropped my Turbo. It fell about 7 feet, as the first corner hit the floor, it rebounded and spun the phone so the opposite corner hit the floor next, then the device settled on the floor. Upon inspection the Turbo was off. No damage to screen.
So I turned it on... familiar vibrate... but no backlight... not even the faint lcd displays anything... okay... now the touch "hardware" buttons light up... as if its booting... okay.... wait... no sound at all but now the power button wakes/sleeps the phone (you can tell but the menu buttons lighting up or going dark)... but after about another minute, it reboots.... rinse and repeat...
I've NEVER seen a phone that looses sound and bootloops over a cracked/broken (even tried disconnected) lcd....
*edit, turns out the nexus devices do the same thing with a broken lcd! Boot loops! Watchdog
At a guess I would say most likely the LCD got damaged.
Rather than go through attempting a repair, you may want to just send it to motorola. They do a flat rate Out of Warranty repair for $125 + tax. Pretty good deal if you ask me.
https://motorola-global-portal.cust..._detail/a_id/102487/p/30,6720,9277#repair-fee
well, i bought a WORKING LCD/Digitizer w/broken outer glass for 20$ on ebay. Should come in tomorrow or the next day. I'll post results a bit later. If it works, I'll do a glass repair on the lcd and use the glass from my "broken" lcd.
Also, I've heard from a few people that a broken LCD can cause bootloops on the nexus devices! So that can explain that.
The only thing not explained is the two red looking pices of "glitter"
Its ALIVE!! The replacement screen fixed ALL issues!
So it seems the nexus line has a watchdog set up, and if your LCD is broken to the point the phone doesn't see it, the phone will reboot on its own.
So I've had this phone since December 24th 2019. It's been RMAd 3 times so far (maybe going into the 4th, started it on the 22nd of June due to what I thought was a dead screen) so since Asus takes so long to repair stuff (I've literally have had it half of the time I've owned it) I decided to just replace it myself since the screen was only 150. So I proceed with the repair and when I'm testing the new screen nothing happens (the phone still turns on like with my other screen, charges and reacts to commands like turning on the flash light or going to the power menu if you hold the power button) So I request a new screen and it does the same thing... Now the chance that both screens were bad from a store with such high ratings is very low so but I'm still hopeful. I purchased another screen that gets here July 7 and will attempt it again but otherwise the only thing I can think of is that one IC or another got fried. I already have the phone opened so I can attempt to put it back together and send it to the Asus to see if they'll fix it but the screen is cracked and I know that after a month with the phone they'll just say "O we don't cover the accidental screen crack" and not take care of whatever the underlying issue is. So if anyone has any idea as to what this could be I'd highly appreciate it.
TLDR: Screen not responding to touches anymore for no apparent reason. It's displaying everything properly, but it won't react to any touch.
Something weird happened to me today. I own a Mi 9T Pro. I received a second Mi 9T Pro with minor water damage at the bottom part (charging port area).
To make sure it was repairable I replaced the damaged parts with parts from my own Mi 9T Pro just to check if it's working. It was working.
I ordered replacement parts from AliExpress and today I put everything together. I didn't have the screen yet, but everything else had arrived. I connected my own phone's screen again just to verify that everything is working. And then it happened.
I turned the phone on. It vibrated and the Mi logo came up as usual, everything seemed normal. After some seconds, while the Mi logo was still on, the screen suddenly turned kinda turquoise for a bit, as though it lost signal for a moment. Quite like an old TV would do.
It did that two times. After that the booting was completed and I had to enter the PIN - at which point I discovered that the screen does not seem to be registering touches anymore. It's displaying everything properly, but it won't react to any touches anymore.
I shut it down and plugged the screen back to the phone it belongs (my own). And touching is not working on my phone now either ...
(Volume buttons work - screen shows the volume bar changing up and down properly.
Screen is about 2 years old and was working flawlessly before.)
Anybody got a clue what might have happened? Can it be saved? I've never had this happen before. Can it be that some replacement part/flex cable was faulty and it damaged/burned the digitizer? How can the touching suddenly stop working just like that?
I highly appreciate any input since having used the screen from my personal phone, I am now left without a phone
Thanks to everyone very much for your time.
you should check the screen cable , you might have damaged it.
Check the ribbon cable under a microscope , check the pins also , you might have bent them. (70% probability)
if not , then your digitizer is damaged somehow (30% possible)
Thanks very much. And either scenario is not repairable I guess, right?
pazof said:
Thanks very much. And either scenario is not repairable I guess, right?
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Click to collapse
On the contrary, both are repairable.
the first scenario is repairable relatively easier compared to the second scenario.
if its the ribbon , it can be repaired if you have the equipement and micro soldering skills, you can easily repaired the broken traces.
For the digitizer , there are some repair shops that have the equipement to replace only the digitizer, and keep the original screen, its not a DIY task really as you need a lot of equipement thats not worth doing it yourself.
Hope this helps.
It most certainly has helped, thank you very much mate. Have a good one.