Water damage - Xiaomi Redmi Note 5A Questions & Answers

my redmi note 5a got into a washing machine.. holding power button shows no effect but LED lights up when phone is connected to cable
need solution

I has a similar issue, my recommendation don't connect It until its full dried. Take a dehumidifier with a plastic bag and set a small atmosphere so the phone can get full dried (at least some hours)
After It, charge and restart

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[Q] Water damage

Hey xda I have a problem so here it goes:
My HOX fell into a cup full of water - clean water. At first he was still on but touchscreen didn't work so I turned it off and removed back housing away and wiped everything and than I putted it in a ball of rice for a night but when I woke up my HOX doesn't even react to a power button. What can I do please, I am desperate
When you picked your phone apart, are you sure you didn't break the connection of the power button? and other cables?
Connect it to your PC and see whether you get any response on PC or phone!!
If not, let it dry for a day or so and keep it on wall charger for 6-10 hours and then try to boot up!
I didn't get any signal on the computer and on the phone. I will try with the wall charger. And I am not sure did I break something but I think not.
could be the power cable. you can get them from ebay for around £10. tried it once and it fixed the problem. :good:
No I don't think it is the cable that connects power button because when I connect it to charger my light doesn't go on and computer doesn't give any signal that it has been connected.

Screen dead from minor water damage. Help?!

Short story...this weekend I had my Gnex about 2 feet from a hot tub and was periodically changing songs on it, getting drops of water on the screen and sometimes wiping it off with a towel. Fast forward to an hour after leaving the hot tub (with a fully functioning phone) and my battery dies during a phone call. I plug in the phone (powered off) and a few hours later turn it on to see the screen black/white fuzzy like a tv without reception. I restart but see the same. I pull the battery and shove it in rice for a day... the phone vibrates upon powering up but now nothing at all shows on the screen. I dismantled the phone today and saw the water sensor attached near the charging port is pink. Any thoughts on how I can salvage the phone? My computer recognizes the Gnex but the folder appears completely blank. This phone has been through much worse, I can't believe small droplets on the screen did this. Thanks in advance for any advice.

Nexus 7 Gen 2 won't turn on

Okay, here's the story. My Nexus 7 Gen 2 went into the water for half an instant. However, when I tried to turn it off immediately, it wouldn't turn off. I put it in a container of rice for a couple of days and eventually, it turned off - the battery died, I'm sure. Anyway, now, when I plug in the charger, I get the battery charging symbol, however, it will still not turn on. I've tried some of the button combos mentioned (hold power for 30 seconds, hold power and volume up for 3-5 seconds, hold power and volume down for 15 seconds, even hold power for 2 minutes), yet nothing seems to work. But as soon as I unplug it and plug it back in the charge symbol appears. Any suggestions?
Thanks!
Chris
Okay, read some more on here and got it into boot load mode. Pressing the up arrow puts the start arrow at the top of the screen pointing to the power button, the down arrow "restart bootloader", however, pressing the power button does nothing.
Info on screen:
Fastboot mode
Product name - flo
variant - flo 16g
hw version - rev_e
bootloader version - flo-04.06
carrier info - none
serial number - 0af16079
Signing - yes
secure boot - enabled
lock state - locked
tchudson said:
Okay, here's the story. My Nexus 7 Gen 2 went into the water for half an instant. However, when I tried to turn it off immediately, it wouldn't turn off. I put it in a container of rice for a couple of days and eventually, it turned off - the battery died, I'm sure. Anyway, now, when I plug in the charger, I get the battery charging symbol, however, it will still not turn on. I've tried some of the button combos mentioned (hold power for 30 seconds, hold power and volume up for 3-5 seconds, hold power and volume down for 15 seconds, even hold power for 2 minutes), yet nothing seems to work. But as soon as I unplug it and plug it back in the charge symbol appears. Any suggestions?
Thanks!
Chris
Click to expand...
Click to collapse
If you put the tab in the rice container without removing the back, you don't know if all the moisture that seeped in has been removed. You need to disassemble the thing, dry each and every component inside with a blow dryer ( both sides of the electronic boards) to make sure of that. Thereafter, you can try again. Because even if you succeed in flashing the OS anew, you'll never know when the residual moisture will interfere or affect the components again.
graphdarnell said:
If you put the tab in the rice container without removing the back, you don't know if all the moisture that seeped in has been removed. You need to disassemble the thing, dry each and every component inside with a blow dryer ( both sides of the electronic boards) to make sure of that. Thereafter, you can try again. Because even if you succeed in flashing the OS anew, you'll never know when the residual moisture will interfere or affect the components again.
Click to expand...
Click to collapse
I didn't use a blowdryer, but it sat out on a table with the back off for about 24 hours and I do live in southern Colorado in the high desert, so humidity isn't a huge factor. I may give that a try today, though. Thanks.
tchudson said:
I put it in a container of rice for a couple of days and eventually, it turned off - the battery died,
Click to expand...
Click to collapse
I'm afraid some corrosion has set in already and it may not be reliable anymore.
Next time, you should immediately disassemble it and disconnect the battery, then use a hairdrier to remove the moisture ASAP.
k23m said:
I'm afraid some corrosion has set in already and it may not be reliable anymore.
Next time, you should immediately disassemble it and disconnect the battery, then use a hairdrier to remove the moisture ASAP.
Click to expand...
Click to collapse
So, given that it will open into the reboot screen and the volumen buttons seem to work but the power button itself doesn't work, could it be possible to replace the power and volume buttons and get it to restart? Just wondering if I can manage to salvage this thing.
tchudson said:
So, given that it will open into the reboot screen and the volumen buttons seem to work but the power button itself doesn't work, could it be possible to replace the power and volume buttons and get it to restart? Just wondering if I can manage to salvage this thing.
Click to expand...
Click to collapse
Yes, try to replace or test with multimeter the control buttons assembly first but if it does not help then remove the motherboard and its shields, and check it for any visible signs of corrosion. Scratching off a conductive corrosion layer may fix it.
:fingers-crossed:

Water damage

Hi
Got a water damaged nexus 7 2013 over here, as soon as it was dropped in water, I turned it off and dried it off before taking it apart and letting it dry out. After putting everything back together the tablet worked wonderfully and the only remainder was a little bit of water under the touch screen and I think I made a big mistake by ignoring that.
After about a week, the battery was dead and needed to be charged, I plugged it in and the led blinked 5 times which is normal so I just left it. After coming back I noticed that the tablet was pretty hot near the cpu and of course, it refuses to turn on, it doesn't blink 5 times anymore, my computer doesn't beep anymore, it's totally dead.
Things I've tried so far:
Connecting it to my pc without battery and screen connected (I know it should blink 5 times as well if no battery is installed) and nothing
Trying to turn it on without daughter board connected (should still show google screen, I have done this before) and again, nothing
Trying to turn it on without screen or daughter board (I know I had a notification that made it beep when it turned on) and nothing
I took it apart again and noticed that the connector on the actual lcd was very corroded and I just assumed the screen was causing this but apparently something else is broken as well.
Anything I can do about this?
Thanks
Hi, I'm sorry to hear about this unfortunate accident.
Firstly an advice to anyone reading it -- in such situation, turning it off is not good enough and one must disconnect the battery ASAP! That's because the power switch is actually only like a standby control and unable to completely cut off power supply. While off, full power is still available to all mobo's voltage regulators as well as LCD's backlight converter and its local power regulator. And then accelerated water corrosion and damage starts...​Remove all metal shields from the motherboard and clean up corrosion residues. The LCD is gone for sure, so test it out again with the mobo and peripheral boards only, looking for the notification light's blinks. If it works, check if you can get picture over SlimPort connection.
:fingers-crossed:​
k23m said:
Hi, I'm sorry to hear about this unfortunate accident.
Firstly an advice to anyone reading it -- in such situation, turning it off is not good enough and one must disconnect the battery ASAP! That's because the power switch is actually only like a standby control and unable to completely cut off power supply. While off, full power is still available to all mobo's voltage regulators as well as LCD's backlight converter and its local power regulator. And then accelerated water corrosion and damage starts...​Remove all metal shields from the motherboard and clean up corrosion residues. The LCD is gone for sure, so test it out again with the mobo and peripheral boards only, looking for the notification light's blinks. If it works, check if you can get picture over SlimPort connection.
:fingers-crossed:​
Click to expand...
Click to collapse
I used a multi-meter to test the battery and the cells are @ 3.4V not sure if that's enough to turn the tablet on tough... I'm letting it charge for a while now to see if my computer picks it up
EDIT: the battery voltage when not connected to the board is 3.4V, the battery voltage when connected to the board is 0.34V. That can't be good
EDIT2: the cpu is mildly warm but the PM8921 battery management IC is burning hot after leaving it to charge for a while

Water Damage Advice (my 4 year old son dropped my phone down the toilet)

My 4yo son helpfully dropped my phone down the toilet after he decided to borrow it to watch youtube. it blanked out and was totally dead. i left it in rice for 5 days (pre ordered the Mate 20 Pro)
Amazingly when i plug it into a charger it will now power on!!! but it wont charge and soon as i disconnect the power cable it dies, also the captive buttons at the bottom and microphone don't work... so i ordered new captive buttons, new charging port and the circuit board that contains the microphone etc that was at the bottom of the phone and will try to take the screen off without breaking it and fit them tonight... does anyone know will this fix the charging issue? do i need to replace the battery? or anything else? or am i wasting my money trying to fix my beloved OP3?
all advice gratefully received.
Kind Regards
Mark
ooMoo said:
My 4yo son helpfully dropped my phone down the toilet after he decided to borrow it to watch youtube. it blanked out and was totally dead. i left it in rice for 5 days (pre ordered the Mate 20 Pro)
Amazingly when i plug it into a charger it will now power on!!! but it wont charge and soon as i disconnect the power cable it dies, also the captive buttons at the bottom and microphone don't work... so i ordered new captive buttons, new charging port and the circuit board that contains the microphone etc that was at the bottom of the phone and will try to take the screen off without breaking it and fit them tonight... does anyone know will this fix the charging issue? do i need to replace the battery? or anything else? or am i wasting my money trying to fix my beloved OP3?
all advice gratefully received.
Kind Regards
Mark
Click to expand...
Click to collapse
So I have now replaced the charging port and soft keys and it still won't charge, I'm guessing that means something in the main board is dead. So sadly I guess I now have to give up.
ooMoo said:
So I have now replaced the charging port and soft keys and it still won't charge, I'm guessing that means something in the main board is dead. So sadly I guess I now have to give up.
Click to expand...
Click to collapse
When you encounter water damage, shut off the phone dry it as much as you can, use a hair dryer and cloth.
And then dump the phone into uncooked rice for a couple of days. That will suck all the moisture out.
Trying to start the device or trying to charge it will send current down the board and the elements, if any of them are covered by water, they're bound to short-circuit and die.
Remember this with any electronic device henceforth.
Sorry about your loss.

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