Hi,
i send my phone down the river and probably killed it. backplate was broken and charging lid as well, there is no warranty any more.
i dried it for a week in a box covered with rice and tried to turn it on afterwards. No reactions on buttons, but after i plugged in the charger, the LED got red and Display turned on showing the "Sony" Screen. after a second or two LED and screen went black and the procedure started again. and again. after a few repetitions i put the plug away. so i didn't charge the phone any longer than ~5min and have not plugged it to the PC.
first question is if someone has encountered the same symptomes and can give a statement of chance to revive the phone. Second one is: Where to start? there are lots of guides to disassemble the phone, thats not a problem i think, i have all the tools i need and a little bit technical knowhow. I want to start checking the battery, pretty shure its dead. afterwards i want to check the board for signs of corrosion. but then?
grateful for any tipps, especialy want to know whats the real death sentence for a water damaged phone. after i have seen the screen working i thought main functionality is there and only the battery died.
xant05 said:
Hi,
i send my phone down the river and probably killed it. backplate was broken and charging lid as well, there is no warranty any more.
i dried it for a week in a box covered with rice and tried to turn it on afterwards. No reactions on buttons, but after i plugged in the charger, the LED got red and Display turned on showing the "Sony" Screen. after a second or two LED and screen went black and the procedure started again. and again. after a few repetitions i put the plug away. so i didn't charge the phone any longer than ~5min and have not plugged it to the PC.
first question is if someone has encountered the same symptomes and can give a statement of chance to rivive the phone. Second one is: Where to start? there are lots of guides to disassemble the phone, thats not a problem i think, i have all the tools i need and a little bit technical knowhow. I want to start checking the battery, pretty shure its dead. afterwards i want to check the board for signs of corrosion. but then?
grateful for any tipps, especialy want to know whats the real death sentence for a water damaged phone. after i have seen the screen working i thought main functionality is there and only the battery died.
Click to expand...
Click to collapse
I would leave it plugged in and see if you can build up any sort of charge in the battery. It seems that changing the battery would be an obvious first step, if you can get enough charge in the phone to fire up the mainboard, then you will see what else needs to be changed. leave it plugged into a charger for 24 hours.
Do you want to repair it to salvage what data is on the phone or is it financial reasons? tbh the cost of new mainboard and battery, plus replacement back screen is going to be more than a second hand phone off ebay. If it's a science project then bravo, not enough people try to rescue thier old kit from the bin, but I'm saying there are easier options than pulling it apart.
Having never pulled a phone apart myself I can't really offer any more advice, but you might want to drop @Chamelleon a PM, as he regularly contributes with hardware fixes and knows his stuff.
its more about financial reasons, data is all backed up. Buying a new phone should be the last option. i want to repair it cause i like repairing things and i want to make clear that the phone is absolutely dead or not. i dont think i would buy a new mainboard/display/battery if i am not completely shure that this will fix all problems. in this case id rather buy a new phone.
i am a bit afraid that if i charge the battery for 24h and still have a circuit on the motherboard i will completely destroy it.
xant05 said:
its more about financial reasons, data is all backed up. Buying a new phone should be the last option. i want to repair it cause i like repairing things and i want to make clear that the phone is absolutely dead or not. i dont think i would buy a new mainboard/display/battery if i am not completely shure that this will fix all problems. in this case id rather buy a new phone.
i am a bit afraid that if i charge the battery for 24h and still have a circuit on the motherboard i will completely destroy it.
Click to expand...
Click to collapse
A week in rice in a warm place means there's no moisture in the phone.
The phone won't be damaged by trying to charge the battery and you need to find out if there's anything working from a full charge.
I recently had a waterdamage too. I took it apart and i saw that there was some corrosion on the board by the display connector. I put the mainboard in isopropyl alcohol (you can get that in the pharmacy). I carefully cleaned the affected part with a soft toothbrush and let it dry for a while. And now my phone is back a life and everything works as it should
Good Luck!
Didgesteve said:
A week in rice in a warm place means there's no moisture in the phone.
The phone won't be damaged by trying to charge the battery and you need to find out if there's anything working from a full charge.
Click to expand...
Click to collapse
Well, turns out this guy is right. Phone is working after charging. Vibration is dead and there are some residues of the wather in or behind the display, but nothing else i can find now. i think i will still disassemble the phone, and clean all parts. Maybe i will replace the vibration motor, but i think i can live without one...
Huawey P9 3gb 32GB single sim.
My wife accidentally let 10/20 seconds in water (swimming pool).
It was on once left out of the water, as my wife hasnt Knowledge about it doesnt consider to power off inmediatelly.
Device powered off itself.
I dont Know if powered off caused for water ingress os simply battery drained.
Now device :
Dont let me fastboot
Dont show anything on screen even when chargind and of course it does not power on.
So seems a totally brick.
As I am reparing everyday automotive electronics (my job) I decided to open it, removed battery and inspect.
I cant believe I cant see almost nothing.
I mean no water, no rusted component, no corroded area....
But I decided to clean carefully every pcb, connector with alcohol isopropylic.
As I said it looks pretty well but I tried.
Phone keeps died
Is there any chance my problem is software?
I mean if device powered off suddenly it could corrupt?
But How can I recover device without having even fastboot...
To be honest I am ver dissapointed, ive seen many times pcbs with lot of rust cause of water ingress and simply cleaning and resoldering works.
Mine seems almost perfect but is totally dead/brick and doesnt Know really the way to go
In my Job Automotive electronics Ive many schemes testing points etc that allows me to search problem but there are no this info for our device , really?
NOTE: Ive not tested with other battery I am trying to find one to test.
Any help will be appreciated.Hello I need help from people same experience
8Boot to Fastboot:
Connect to PC, press in parallel Vol- & Pow.
You said it doesnt boot.
Boot to EMUI Recovery (or TWRP):
Not on USB, Vol+ & Pow
Boot to eRecovery:
Connect by USB to charger, Vol+ & Pow
If it doesn't boot any way, and doesn't show anything when connected by USB to charger, and if PC does not recognize as USB device when connected - then it is dead.
In Cases of software malfunction it would boot some way (at least to Fastboot) and/or will show something on the screen
But if there was no rust or visible damage, maybe it has wet detector - try by giving to the service shop (guarantee void but maybe they can repair for relatively cheap)
Yes its dead omg... Water killed it. What more do you want to know? you cant rescue it.
Ok to your answer but I keep thinking it has solution.
Ive compared voltage in battery a couple hours with charger connected.
It is charging, very litlle but it does.
And I cant believe with so little water mobile dead....as Ive said I see many pcbs literally whole corroded with mobile powering.
If you see picture of PCB seems impossible than device were dead.
I think could be a battery problem?
How can I warranty buttons are working???
And what about the mini pcb down where usb is connected???? If it is bad how then it will go to fastboot...Usb connection will be useless
Even when big pcb is the problem it could be reparaible or at least testable.
But I do not have this info, I mean testpoints, check the feeds etccc
I tested all marked 0 resistors and seems ok.
In fact easy question is DEAD.
But I want to keep fighting, these are my life rules and I want to keep trying at least testing to Know what is the problem.
If finally MAIN PCB is dead (MOST POSSIBLE)I will consider to buy one PCB/or PCB donor from a scartched unit.
As I said due to my Job I have tools enougth to check electronics and at least Knowing whats the matter.
Never surrender :good:
I dont think its the battery problem. More like motherboard.
Okay. I really need help here guys. So long ago I had water damaged my phone and I got it working again. About 2-3 months later the battery started acting up and showing percentages in 10s and soon after could only use it when it was plugged in.
Now, whenever I plug it in it immediately shows the Huawei logo and starts to boot up. Which I don't like because I remember it used to show a green battery circle before. But nevertheless its in a bootloop now. The weird thing is, I can't use the volume up button method. I don't know why. It just carries on.
Maybe I should wet the power button with water if its been held down causing it to immediately boot up when plugged in? i dont know.
If anyone could guide me or suggest what to do I would honestly be so appreciative. Thank you so much!
Could be a hardware issue. Water is causing corrosion to metal parts and if there is still a bit water inside your phone the corrosion can damage parts of the hardware. It's risky to use the phone without drying it completely. In the most bad case the battery can be shorted by the water which can cause a battery fire or explosion.
Bring your phone to a repair shop if you're not able to open it by yourself. But I think there's no hope anymore.
You should've let it dry completely before using it again.
Don't put water again to parts of the phone.
If you're able to open it, disconnect the battery and check the logic board for corrosion and water.
If there's still water you can remove it early by putting the logic board on a piece of cloth and wait for a few days.
You can also try to clean corroded parts with pure alcohol and cotton swaps.
Get a new battery to be safe, check if the old one is misformed. If it's so, don't use it again - NEVER!
Li-ion isn't a funny thing, it can be very dangerous.
If there's a shortage inside the battery or it's physically damaged it can burn out. The technology is based on cells. If the cells are getting shorted each other, a chain reaction starts and inside the battery the current flow can get so high that the battery start burning. It stops when every cell is damaged and the voltage is 0 - it's hard to extinguish such fires. There are many videos on YouTube.
So don't make fun with this, just do something if you feel safe in electronics. If not, go to a repair shop.
Hi folks,
I have been sitting my friend's phone around for a while.
I somehow made it to unseal the phone, I guess by using an air pressure gun.
My approach was to open it up, clean it out and try to restart it.
Mostly with one approach, making a backup of the pictures.
Sadly, I was not patient enough and partly destroyed the screen.
But after is resembled most parts lossy, I was able to restart the phone.
As the screen was too hard damaged, and it took a while till I got a new one, I took the phone aside.
New screen has arrived after a while but shockingly the screen doesn't turn at all even with the old screen.
As the battery was deeply discharged, it charged it a little janky and messed up the port.
But still not working.
So my last ideas was to tried starting it without the battery, which didn't work.
So here is my question, will it start without the battery in at all or the other way around, could a broken battery terminal be now the main cause for not getting the phone started.
The alarm is still working as well as the vibration and the indicator LED which stays more or less only red.
It needs the battery to boot up. Without the battery the phone likely won't have enough current to boot.
You use heat, anhydrous isopropyl alcohol, plastic picks to get most of these phones rear covers off. Never compressed air.
I would guess that it is not the current, more the basic system how the battery management is realized.
No the compressed air wasn't the reason, it was more the reason for the water leakage.
As the rubber gasket got misaligned with using it to clean up the usb c port.
The display got cracked because I assumed the display would be more narrow like I was used to with amoled ones.
So my spatula dive in between the LCD and the backlight the rest was made by my manual force.
I think I will order a spare battery and will retry it..
Make sure everything is completely dry. Leave battery disconnected until dry.
Do not expose LCD displays to any solvents including isopropyl alcohol as they will poison it.
Things happen... the second time is always easier.
The battery is a cheap fix if it works.
Hi,
I'd like to ask you for some advices or maybe a solution. Lately I was updating phone by adb fastboot to xiaomi.eu rom V13.0.12.0.SKACNXM from 12.5 (xiaomi.eu), and doing little cleaning like uninstalling/disabling services by adb or Xiaomi ADB/Fastboot Tools the phone was working for a week or almost two, but suddenly by day it went off. I tried to boot it on, and it was working as always normaly but the thing is after half a minute it is going off again.
It works always in that way:
Booting -> working (ex doing photos, browsing or launching games) -> several seconds goes by -> turing off
The thing is that if im in fastboot mode it is not turning off at all, it could lay like that for hours
I've tried other chargers - the same
Downgrading back to 12.5 (after turning it on it is always playing against time, to turn on developer options -> turning off -> turn usb debug in settings -> turning off) - still same
Event after a downgrade, installation of twrp and doing solid wipe for fresh miui 12.5 (thinking that it was miui 13 fault) -> installed xiaomi.eu 12.5 - it is still the saaaaaaame
I'm out of ideas. I've called non authorized service in my town, asking if they had some devices with that problem, but no. Im in Europe and told them that I bought that phone by tradingshenzen - they told me that there is no guarantee that they could help (devices exported to EU are different than those to China's).
I bought my phone in november 2021 and everything was fine to that unfortunate day.
I'll be glad if someone could help me with this problem
Cheers
Hard to say; you change the firmware which compounds the diagnostic process.
Is it a firmware or software crash?
Try safe mode to try to rule out a 3rd party app causing it.
Can you roll it back to the previous firmware? However if it shuts down while doing that... it won't be pretty.
Otherwise, a failed battery, C port or mobo.
A battery may show a good voltage but not be able to deliver enough current capacity. Normally it would drop out at bootup though.
Play with it... hands on is probably needed here. A good tech could sort it out.
Endiii said:
It works always in that way:
Booting -> working (ex doing photos, browsing or launching games) -> several seconds goes by -> turing off
The thing is that if im in fastboot mode it is not turning off at all, it could lay like that for hours
Click to expand...
Click to collapse
Check if your phone still has a valid IMEI.
blackhawk said:
Hard to say; you change the firmware which compounds the diagnostic process.
Is it a firmware or software crash?
Try safe mode to try to rule out a 3rd party app causing it.
Can you roll it back to the previous firmware? However if it shuts down while doing that... it won't be pretty.
Otherwise, a failed battery, C port or mobo.
A battery may show a good voltage but not be able to deliver enough current capacity. Normally it would drop out at bootup though.
Play with it... hands on is probably needed here. A good tech could sort it out.
Click to expand...
Click to collapse
How to check if it is a firmware problem? When I installed TWRP then I could too operate for some time without turning itself off randomly.
I've tried safe mode and recovery mode but it's the same always unfortunately :/
Also I could say that I have washed phone with a little of water pressure (doing it time to time) the day before this issue. But it is IP68 waterproof phone, and nothing was loose in the whole phone case, just outward usb-c port like in any smartphone.
I read on some forums that mobo could be defective, but but should it boot up and run for a while then?
themissionimpossible said:
Check if your phone still has a valid IMEI.
Click to expand...
Click to collapse
That's an idea too. I will check when I get home from work
Endiii said:
How to check if it is a firmware problem? When I installed TWRP then I could too operate for some time without turning itself off randomly.
I've tried safe mode and recovery mode but it's the same always unfortunately :/
Also I could say that I have washed phone with a little of water pressure (doing it time to time) the day before this issue. But it is IP68 waterproof phone, and nothing was loose in the whole phone case, just outward usb-c port like in any smartphone.
I read on some forums that mobo could be defective, but but should it boot up and run for a while then?
Click to expand...
Click to collapse
Water? Not good. The seals may or may not seal... don't test them.
IMEI is visible in phone settings. But the SIM card is not.
When i wash the phone water pressure is not that strong, I am aware of it. Phone cost me a little $$$ so I am not testing it's durability that much at all
Seriously I have no idea what is the cause of this problem
Seems like you have a few drops of water in the phone. Since the device is tight sealed it is really hard to get them out.
Please try this carefully, and if the mobo is alright then you should get away with this method (tried my self when I took my device for a dive)
1- you'll need to abandon your device for a full days or nights, longer better.
2- TURN OFF YOUR DEVICE AND LEAVE IT OFF THE WHOLE PROCESS, and take out your Sim card and leave tray open. This will open a gap in device for moist to leak out.
3- get any type of moisture absorbers you can find in stores. (Not rice, proper chemical moisture absorbers).
4- put moisture absorber in a plastic bag, and put the device in it, prefer to put a divider between device and absorber so it does not leave any marks on device. (Just in case, I did not use any dividers and it went alright with me).
5- leave device for a full night or 2. (Longer better). Plastic bag should be completely sealed with little quantity of air inside it (not so vacuumed to give little air movement).
***6- if you want to speed up process which what I did, then put the device in the oven with a temperature BELOW 50c. If you go higher than that then most likely you'll ruin the copper wiring, connections and lose your device permanently. (I put it in the oven). Do it for 15mins then turn off oven but leave device in it for an hour or 2, then redo process 2 or 3 times and leave the device in the bag for a whole night.
**** DO NOT PUT YOUR DEVICE IN MICROWAVE AT ANY COSTS, OR YOULL LOSE BOTH DEVICE AND MICROWAVE AND COULD LOSE YOUR HOUSE AS WELL IF IT CATCHES FIRE.
I'd this did not help (I bet it will help), then your MOBO is dead unfortunately.
My device kept turning off whenever the sensor (that turns off screen during calls) in use, for 3 days until I did this and it was perfect since then.
Hope this helps.
If you try this, please advise if it worked with you or not.
hassanaliyeh said:
Seems like you have a few drops of water in the phone. Since the device is tight sealed it is really hard to get them out.
Please try this carefully, and if the mobo is alright then you should get away with this method (tried my self when I took my device for a dive)
1- you'll need to abandon your device for a full days or nights, longer better.
2- TURN OFF YOUR DEVICE AND LEAVE IT OFF THE WHOLE PROCESS, and take out your Sim card and leave tray open. This will open a gap in device for moist to leak out.
3- get any type of moisture absorbers you can find in stores. (Not rice, proper chemical moisture absorbers).
4- put moisture absorber in a plastic bag, and put the device in it, prefer to put a divider between device and absorber so it does not leave any marks on device. (Just in case, I did not use any dividers and it went alright with me)
5- leave device for a full night or 2. (Longer better).
***6- if you want to speed up process which what I did, then put the device in the oven with a temperature BELOW 50c. If you go higher than that then most likely you'll ruin the copper wiring, connections and lose your device permanently. (I put it in the oven). Do it for 15mins then turn off oven but leave device in it for an hour or 2, then redo process 2 or 3 times and leave the device in the bag for a whole night.
**** DO NOT PUT YOUR DEVICE IN MICROWAVE AT ANY COSTS, OR YOULL LOSE BOTH DEVICE AND MICROWAVE AND COULD LOSE YOUR HOUSE AS WELL IF IT CATCHES FIRE.
I'd this did not help (I bet it will help), then your MOBO is dead unfortunately.
My device kept turning off whenever the sensor (that turns off screen during calls) in use, for 3 days until I did this and it was perfect since then.
Hope this helps.
Click to expand...
Click to collapse
It's a thought but not enough. You need heat to drive the moisture out*, desiccants are useless for this. You need a hot dry room and airflow across the inside of the device.
Most of all the battery needs to be disconnected asap to limit the damage to the power buses, and pads bearing power.
The rear cover should be pulled... overkill is better than a corroded mobo and connectors.
Note: anhydrous isopropyl alcohol can be used as a drying agent but good judgment must be exercised. Any solvent can poison a lcd display, even the vapors and should never be used when a lcd is present. Residue from evaporation can happen if the alcohol gets in between the front glass and display. The alcohol must be allowed to permeate the whole assembly and connectors. It then must be removed in a warm dry room as much as is practical and allowed to completely dry.
*Heat drives out moisture ie a hot box which works even in high ambient humidity. Used to preserve cams, lens, surgical instruments, etc.
Old school.
blackhawk said:
It's a thought but not enough. You need heat to drive the moisture out*, desiccants are useless for this. You need a hot dry room and airflow across the inside of the device.
Most of all the battery needs to be disconnected asap to limit the damage to the power buses, and pads bearing power.
The rear cover should be pulled... overkill is better than a corroded mobo and connectors.
Note: anhydrous isopropyl alcohol can be used as a drying agent but good judgment must be exercised. Any solvent can poison a lcd display, even the vapors and should never be used when a lcd is present. Residue from evaporation can happen if the alcohol gets in between the front glass and display. The alcohol must be allowed to permeate the whole assembly and connectors. It then must be removed in a warm dry room as much as is practical and allowed to completely dry.
*Heat drives out moisture ie a hot box which works even in high ambient humidity. Used to preserve cams, lens, surgical instruments, etc.
Old school.
Click to expand...
Click to collapse
That is excessive, not for only a few drops. I do not recommend doing this unless the device is soaked with water and dripping from inside. Because inexperience in doing this could cause more issues than a few drops.
I video recorded with my device underwater at depth of 1.5m for a few minutes, and I did what I mentioned above, device is clean and clear for more than 6 months since the incident. Not a single glitch since dried like I said above.
hassanaliyeh said:
That is excessive, not for only a few drops. I do not recommend doing this unless the device is soaked with water and dripping from inside. Because inexperience in doing this could cause more issues than a few drops.
I video recorded with my device underwater at depth of 1.5m for a few minutes, and I did what I mentioned above, device is clean and clear for more than 6 months since the incident. Not a single glitch since dried like I said above.
Click to expand...
Click to collapse
There's no telling how much is inside unless you pull the rear cover. Worse with the battery connected electrolysis can occur and rapidly destroy any energized conductors.If it's under a BGA chipset and causes damage, game over. Mobo mounted connector pins that get damaged will have a similar outcome. Once corrosion starts it is persistent and invasive.
The faster you pull the battery the better.
Leaving any water inside is not acceptable.
The clock is ticking Mr Wick...
Endiii said:
IMEI is visible in phone settings. But the SIM card is not.
When i wash the phone water pressure is not that strong, I am aware of it. Phone cost me a little $$$ so I am not testing it's durability that much at all
Seriously I have no idea what is the cause of this problem
Click to expand...
Click to collapse
hit me on dm or instagram (@samu_trumpet_) and ill help you, I have some ideas, flash persist, and boot, because that looks like a boot img problem. If we manage to solve the issue I make a thread to help others
blackhawk said:
There's no telling how much is inside unless you pull the rear cover. Worse with the battery connected electrolysis can occur and rapidly destroy any energized conductors.If it's under a BGA chipset and causes damage, game over. Mobo mounted connector pins that get damaged will have a similar outcome. Once corrosion starts it is persistent and invasive.
The faster you pull the battery the better.
Leaving any water inside is not acceptable.
The clock is ticking Mr Wick...
Click to expand...
Click to collapse
Whatever you say my friend, if you believe a wash without pressure caused a lot of water to enter in a tight sealed device needs all this to be done, maybe you are right. And maybe you are wrong. Won't harm to try what I said, it is his decision.
If it was me, I wouldn't open a costly device without proper tools. Unless it is my last option.
hassanaliyeh said:
Whatever you say my friend, if you believe a wash without pressure caused a lot of water to enter in a tight sealed device needs all this to be done, maybe you are right. And maybe you are wrong. Won't harm to try what I said, it is his decision.
If it was me, I wouldn't open a costly device without proper tools. Unless it is my last option.
Click to expand...
Click to collapse
They aren't that hard to open. A rear cover is cheap to replace if you get clumsy, just don't cut into anything inside if using a razor blade. Heat gun, anhydrous isopropyl, guitar picks or old credit cards, a razor blade. Watch a couple tear down vids for that model.
With the battery connected the damage continues unabated if there's water in critical areas.
You assume the seals are intact... obviously a seal failed. The seals are flimsy and can fail over time or if installed improperly. There's no way to know the extent of the contamination without inspecting it. Regardless to dry it properly requires pulling the cover.
When my Galaxy Buds case fell in a cup of coffee (cream & sugar) I tore it apart on the spot. Flushed with RO water for the sugar then with anhydrous isopropyl. Couldn't disconnect the spot welded Li. Allow to fry for a day. Over 2 years later it still works and charges. Timely intervention matters.
Its happening with me too but for me its due to high temperature, when my phone gets heated it will restart no matter what I'm doing. Very few times it says limiting battery usage due to overheating. When I'm in my room it doesn't happen due to AC but in outside when i use maps it will heat and restart so my solution of avoiding it is trying to prevent phone from overheating. It may be happening with you as well but i don't know, the conditions may be different for both.
gursewak.10 said:
Its happening with me too but for me its due to high temperature, when my phone gets heated it will restart no matter what I'm doing. Very few times it says limiting battery usage due to overheating. When I'm in my room it doesn't happen due to AC but in outside when i use maps it will heat and restart so my solution of avoiding it is trying to prevent phone from overheating. It may be happening with you as well but i don't know, the conditions may be different for both.
Click to expand...
Click to collapse
I think your is related to a ROM issue,
What version you using?
hassanaliyeh said:
I think your is related to a ROM issue,
What version you using?
Click to expand...
Click to collapse
No bro its not related to ROM issue. Btw i m using eu latest weekly. I know its only due to heated weather because when environment temperature is good it never do like this. Only happens if it heats too much and i can feel that heat when touching it.
gursewak.10 said:
No bro its not related to ROM issue. Btw i m using eu latest weekly. I know its only due to heated weather because when environment temperature is good it never do like this. Only happens if it heats too much and i can feel that heat when touching it.
Click to expand...
Click to collapse
I live in tropical conditions (stable 35c all year long) and I do not have this issue, since you are on EU, I believe it is rom issue
gursewak.10 said:
No bro its not related to ROM issue. Btw i m using eu latest weekly. I know its only due to heated weather because when environment temperature is good it never do like this. Only happens if it heats too much and i can feel that heat when touching it.
Click to expand...
Click to collapse
You need to look at all the temperature sensors when this happens.
You may have a bad temperature sensor that's causing it to trip out at too low a temperature.