Fix for these unusual problems. - Galaxy S III Q&A, Help & Troubleshooting

I was asked to by my cousin to see if I could help him as he was having a problem with his S3 today, by coincidence a friend also rang me about his S3 giving him problem. When I got hold of both phones I found that they have identical issues. Both phones are not rooted and more than a year old so out of warranty.Here are their problems.
1. Turn on - it just loops at the splash screen.
2. Enter recovery - It just flashes the android figure and goes back to the loop.
3. Enter download mode - only as far as vol up and it goes back to loop.
4. Plug into wall charger - It shows the gray battery icon with static circle, at times it just flashes the charging icon.
5. Remove battery and insert the phone boots into the loop.
So there is no way to wipe or flash with Odin, I remember I had fixed my Note 1 with the charging issue which is the charging port. So i guess it could be the same problem,
THE FIX - There is a flat horizontal plate at the charging port which after repeated pluging in and pulling out usb it somehow touches the bottom. couple with dirt and grime and sweat it causes some sort of shorting.
I disassemble the phone, gently with a small flat screw driver i lifted the plate up, careful not to insert too deep and applying very light force in lifting it a bit.
With a small soft tooth brush using alcohol, clean out the port at the same time I also clean the the whole mobo, at the power on point as well..
Finally using a hair dryer at lowest, to dry it up. Reassemble and manage to go to recovery do a wipe and restore, both working well.
You could just try without disassembling too, by just lifting the plate and cleaning with alcohol, but remember to be very careful otherwise you will screw up the port.
Remember if anyone wants to try this I am in no way responsible for your damage.
Hope this helps those who have similar issues, being unable to boot up and caught in bootloop may not always be software or eMMc problems. Cheers

Related

[TUT]To fix a water damaged Neo V

This was my question before I converted it into a tutorial:
Sorry if this question was posted before (I did ask this in the NOOB-FRIENDLY thread, but didn't get a constructive answer)
My Xperia Neo V dropped into water.
Dried it with rice for a whole day and turned it on. Success! Was able to even play games.
Then I sent it for charging. (Battery was 8%)
5 mins later, it died.
Responds by entering flashmode after blinking red LEDs (3 I think), so I flashed stock.
Still couldn't start, so I sent it for charging (No response either after some hours)
I abandoned it and switched to a Galaxy Ace...until now....
Connected it to PC a month later.
It blinks red LED continuously, unplugged it and plugged it to a charger. No LED response whatsoever.
Plugged to PC again and POOF! Magic.
Detected by PC as my old MT11i :'D
LED is green, can do file exploration. Buttons are lit, vibrates when I press shutter button. No sound with the volume buttons
So the verdict...
CAN I STILL REVIVE MY NEO V?
IS MY DISPLAY DAMAGED?
This tutorial was made possible by @xange and @georgeiulian89. Thanks!
Usually when you drop your phone, you would be doomed. Or so you thought. With this tutorial, you can save A LOT of money buying a new phone or repairing the wet phone!
HOWEVER, I CANNOT GUARANTEE THAT YOUR PHONE CAN REVIVE. THIS WORKED FOR ME (SHALLOW DIP IN WATER). YOU MIGHT ALSO NEED A NEW BATTERY (IF YOU THINK YOU CAN REVIVE IT)
Steps(suggested by xange, proved):
1. Remove your phone from the water source IMMEDIATELY! (duh) DO NOT ATTEMPT TO SWITCH IT ON OR PRESS ANY BUTTON.
2.Remove the battery, SIM and micro SD cards.
3.Dry the body with a dry cloth. Try not to use tissue paper as it will leave residue.
4.Disassemble the phone, all the way to the motherboard. I used a small slotted screwdriver (the one with only one edge)as there are screws shaped like stars. If you have that type of screwdriver you can use it. Similar disassembly video here: www.youtube.com/watch?v=ginuDIeNCs8
WARNING: INTERNAL PARTS ARE VERY SENSITIVE TO STATIC, METAL,ETC. BE CAREFUL. ALSO REMOVE THE CONNECTIONS TO THE FRONT COVER AND DIGITIZER (display) BEFORE REMOVING THEM.
5.Direct a blowing fan to all the internal parts to dry them. Keep the screws and parts in an accessible area. Leave it for 30 minutes. DO NOT DRY IT WITH A HAIRDRYER. YOU ARE JUST TRYING TO SCREW YOUR PHONE.
6.Reassemble the phone and insert the battery ONLY. NOTE: Make sure the ribbon connector is clean before connected, if dust (or any tiny electric conductor) sticks on the connector while connecting them, you will have high chancesof damaging the phone. Then, switch on the phone. If not,
A) CHARGE IT: Your phone battery might be 100% dead(until normal charging can't power it on). For me I pressed and held the Back button while plugging the charger into the phone (Flashmode). The LED should blink red and eventually, green. This is when normal charging starts.
B) REPLACE THE BATTERY: You'll need to do so especially when the (once)white area near the connectors of the battery has turned red, indicating battery damage.
C) SEND IT TO A (optional: AUTHORIZED) SERVICE CENTER: Out of luck. This is the furthest I can help.
ALTERNATIVE DRYING METHODS:
A)PUT IT IN RICE FOR A DAY: NO, Asians won't come to repair your phone. Rice acts like silica, which absorbs moisture like sponge. I suggest you disassemble the phone first as rice might get into the small holes around your phone.
B)SOAK IN ALCOHOL, THEN PUT IT OUT: Disassemble it first, too. Though I haven't tried this method, there are those who have proved it to work.
C) RADIATOR DRYING (suggested by georgeiulian89): I've turned it off,i've removed the back cover, took out the battery, sim card and sd card, and i've put the phone on the radiator (i've put a towel between the phone and the radiator and i've placed the phone on the towel). I've left the phone about two hours to dry, and then i've inserted back the sim, sd card and the battery and turned it on.
C)DRY IT WITH A HAIRDRYER: NO. RISKY METHOD. Water will evaporate, then condense back somewhere once you've done hairdrying your phone it will condense back. I tried it and it condensed on my phone's camera lens. (It's a hairdryer, not a phonedryer!)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Hope this tutorial helps those out there whose phones have went swimming (or diving)
THANK ME IF I HELPED ​
Jessss
Sent from my Xperia Neo V using XDA Premium 4 mobile app
karanrajkapur said:
Jessss
Sent from my Xperia Neo V using XDA Premium 4 mobile app
Click to expand...
Click to collapse
If you mean yes, then HOW?
fenzo3 said:
If you mean yes, then HOW?
Click to expand...
Click to collapse
What i believe is you've broken your battery and i didn't get anything what you asking about the display. It doesn't light up or what???
Sent from my Xperia Neo V using XDA Premium 4 mobile app
I dropped my Xperia Neo into water for 3 times, yet still operable, i mean, it survived 3 times of dropped into a pail of water, NO JOKES! .
What you should do is, the moment you dropped your phone into water, pick it out of water immediately, open the back cover and take out the battery immediately to prevent further electric short circuit. You will need some small tool to open every single screw to get the mother board come out (careful when unplug those ribbon sockets, if it breaks, you may have to pay to replace it) and dry (using hair dryer?) every single spot in the phone, except the screen, the screen should be tightly seal and should have no water enter into it. maybe the rubber physical buttons you have to take out and dry it too. (DON'T open the screen no matter what happen, unless water really enters the screen, or else the dust enter and stick at the screen you will have a REALLY HARD TIME { i mean it } to clean those dust out of the screen) confirm everything is dried and then assemble it. (from here onwards, it is a luck test whether you still able to save your phone or not, a line between hell and heaven) Put in your battery, It is normal you may not able to turn on your phone at first, give it a charge about 20 minutes and leave it there (red LED may blink repeat-ly for a while and you will not able to turn it on, just leave it) then switch it on, If you still can't turn it on, try change the battery. If symptom persist, god bless you, i tried my best helping you. ( it means it may not 100% probability to save your phone, but it is a way i did to save my phone)
Eventhough my phone survived dropping into water for 3 times, but it has some problems now, a random one, the phones get really really hot for no reasons for a short period (about 1 hour to 2 days) the heat comes from the motherboard after my inspection, maybe some water droplet enter into the chips and causing electric short circuit?
Good luck.
xange said:
I dropped my Xperia Neo into water for 3 times, yet still operable, i mean, it survived 3 times of dropped into a pail of water, NO JOKES! .
What you should do is, the moment you dropped your phone into water, pick it out of water immediately, open the back cover and take out the battery immediately to prevent further electric short circuit. You will need some small tool to open every single screw to get the mother board come out (careful when unplug those ribbon sockets, if it breaks, you may have to pay to replace it) and dry (using hair dryer?) every single spot in the phone, except the screen, the screen should be tightly seal and should have no water enter into it. maybe the rubber physical buttons you have to take out and dry it too. (DON'T open the screen no matter what happen, unless water really enters the screen, or else the dust enter and stick at the screen you will have a REALLY HARD TIME { i mean it } to clean those dust out of the screen) confirm everything is dried and then assemble it. (from here onwards, it is a luck test whether you still able to save your phone or not, a line between hell and heaven) Put in your battery, It is normal you may not able to turn on your phone at first, give it a charge about 20 minutes and leave it there (red LED may blink repeat-ly for a while and you will not able to turn it on, just leave it) then switch it on, If you still can't turn it on, try change the battery. If symptom persist, god bless you, i tried my best helping you. ( it means it may not 100% probability to save your phone, but it is a way i did to save my phone)
Eventhough my phone survived dropping into water for 3 times, but it has some problems now, a random one, the phones get really really hot for no reasons for a short period (about 1 hour to 2 days) the heat comes from the motherboard after my inspection, maybe some water droplet enter into the chips and causing electric short circuit?
Good luck.
Click to expand...
Click to collapse
I followed a disassembly video for the Neo, but unfortunately the Neo V has a slightly different assembly, so I could not remove the screen to get access to the motherboard. Also, before I put it in rice, I tried to turn it on (Sony said it was water-resistant) after 12 hours in rice. The screen went all weird but I could hint the LegacyXperia kernel logo. That was before my phone booted up normally, and died upon charging.
For your heat problem, perhaps rust? Water should have evaporated from the heat and condensed everywhere in the motherboard.
Would soaking it in alcohol help?
fenzo3 said:
Sorry if this question was posted before (I did ask this in the NOOB-FRIENDLY thread, but didn't get a constructive answer)
My Xperia Neo V dropped into water.
Dried it with rice for a whole day and turned it on. Success! Was able to even play games.
Then I sent it for charging. (Battery was 8%)
5 mins later, it died.
Responds by entering flashmode after blinking red LEDs (3 I think), so I flashed stock.
Still couldn't start, so I sent it for charging (No response either after some hours)
I abandoned it and switched to a Galaxy Ace...until now....
Connected it to PC a month later.
It blinks red LED continuously, unplugged it and plugged it to a charger. No LED response whatsoever.
Plugged to PC again and POOF! Magic.
Detected by PC as my old MT11i :'D
LED is green, can do file exploration. Buttons are lit, vibrates when I press shutter button. No sound with the volume buttons
So the verdict...
CAN I STILL REVIVE MY NEO V?
IS MY DISPLAY DAMAGED?
Click to expand...
Click to collapse
I guess that it's a problem with the battery, not with the display (probably the battery has been short-circuited). I dropped my phone (Xperia Neo) in water 3 days ago. I've took it out after about 10-15 seconds (this was the time until i've realised that it dropped). The phone was still working fine, it didn't shut down by itself. What i did: I've turned it off,i've removed the back cover, took out the battery, sim card and sd card, and i've put the phone on the radiator (i've put a towel between the phone and the radiator and i've placed the phone on the towel). I've left the phone about two hours to dry, and then i've inserted back the sim, sd card and the battery and turned it on. Gues what: it works without any problem, just like before the incident. You should check the water damage indicator on the battery (it's a white strip near the connectors of the battery). If it's white, the phone don't have any problem, but if it's pink or red, the phone was damaged by the water. Mine it's white, with some very little pink on the edge (before it was completely white).
georgeiulian89 said:
I guess that it's a problem with the battery, not with the display (probably the battery has been short-circuited). I dropped my phone (Xperia Neo) in water 3 days ago. I've took it out after about 10-15 seconds (this was the time until i've realised that it dropped). The phone was still working fine, it didn't shut down by itself. What i did: I've turned it off,i've removed the back cover, took out the battery, sim card and sd card, and i've put the phone on the radiator (i've put a towel between the phone and the radiator and i've placed the phone on the towel). I've left the phone about two hours to dry, and then i've inserted back the sim, sd card and the battery and turned it on. Gues what: it works without any problem, just like before the incident. You should check the water damage indicator on the battery (it's a white strip near the connectors of the battery). If it's white, the phone don't have any problem, but if it's pink or red, the phone was damaged by the water. Mine it's white, with some very little pink on the edge (before it was completely white).
Click to expand...
Click to collapse
Thanks for the tip but in all-summer Singapore we don't have radiators.
UPDATE: After following steps by @xange to reassemble and charge my Neo V, it BEAUTIFULLY WORKED!
The catch: Battery calibration problem, stuck at 100%. I'll figure a way out. Thanks a lot devs!
fenzo3 said:
Thanks for the tip but in all-summer Singapore we don't have radiators.
UPDATE: After following steps by @xange to reassemble and charge my Neo V, it BEAUTIFULLY WORKED!
The catch: Battery calibration problem, stuck at 100%. I'll figure a way out. Thanks a lot devs!
Click to expand...
Click to collapse
To get rid of 100% battery issue, you might just want to flash stock ftf in the first place, give it a full charge and then flash your desired driver.
Sent from my Xperia Neo V using XDA Premium 4 mobile app
fenzo3 said:
Thanks for the tip but in all-summer Singapore we don't have radiators.
UPDATE: After following steps by @xange to reassemble and charge my Neo V, it BEAUTIFULLY WORKED!
The catch: Battery calibration problem, stuck at 100%. I'll figure a way out. Thanks a lot devs!
Click to expand...
Click to collapse
try battery calibrator by zeppelinrox. i couldn't recall where he put the script. try search around XDA.... good luck.
---------- Post added at 09:26 PM ---------- Previous post was at 09:16 PM ----------
fenzo3 said:
This was my question before I converted it into a tutorial:
Sorry if this question was posted before (I did ask this in the NOOB-FRIENDLY thread, but didn't get a constructive answer)
My Xperia Neo V dropped into water.
Dried it with rice for a whole day and turned it on. Success! Was able to even play games.
Then I sent it for charging. (Battery was 8%)
5 mins later, it died.
Responds by entering flashmode after blinking red LEDs (3 I think), so I flashed stock.
Still couldn't start, so I sent it for charging (No response either after some hours)
I abandoned it and switched to a Galaxy Ace...until now....
Connected it to PC a month later.
It blinks red LED continuously, unplugged it and plugged it to a charger. No LED response whatsoever.
Plugged to PC again and POOF! Magic.
Detected by PC as my old MT11i :'D
LED is green, can do file exploration. Buttons are lit, vibrates when I press shutter button. No sound with the volume buttons
So the verdict...
CAN I STILL REVIVE MY NEO V?
IS MY DISPLAY DAMAGED?
This tutorial was made possible by @xange and @georgeiulian89. Thanks!
Usually when you drop your phone, you would be doomed. Or so you thought. With this tutorial, you can save A LOT of money buying a new phone or repairing the wet phone!
HOWEVER, I CANNOT GUARANTEE THAT YOUR PHONE CAN REVIVE. THIS WORKED FOR ME (SHALLOW DIP IN WATER). YOU MIGHT ALSO NEED A NEW BATTERY (IF YOU THINK YOU CAN REVIVE IT)
Steps(suggested by xange, proved):
1. Remove your phone from the water source IMMEDIATELY! (duh) DO NOT ATTEMPT TO SWITCH IT ON OR PRESS ANY BUTTON.
2.Remove the battery, SIM and micro SD cards.
3.Dry the body with a dry cloth. Try not to use tissue paper as it will leave residue.
4.Disassemble the phone, all the way to the motherboard. I used a small slotted screwdriver (the one with only one edge)as there are screws shaped like stars. If you have that type of screwdriver you can use it. Similar disassembly video here: www.youtube.com/watch?v=ginuDIeNCs8
WARNING: INTERNAL PARTS ARE VERY SENSITIVE TO STATIC, METAL,ETC. BE CAREFUL. ALSO REMOVE THE CONNECTIONS TO THE FRONT COVER AND DIGITIZER (display) BEFORE REMOVING THEM.
5.Direct a blowing fan to all the internal parts to dry them. Keep the screws and parts in an accessible area. Leave it for 30 minutes. DO NOT DRY IT WITH A HAIRDRYER. YOU ARE JUST TRYING TO SCREW YOUR PHONE.
6.Reassemble the phone and insert the battery ONLY. Then, switch on the phone. If not,
A) CHARGE IT: Your phone battery might be 100% dead(until normal charging can't power it on). For me I pressed and held the Back button while plugging the charger into the phone (Flashmode). The LED should blink red and eventually, green. This is when normal charging starts.
B) REPLACE THE BATTERY: You'll need to do so especially when the (once)white area near the connectors of the battery has turned red, indicating battery damage.
C) SEND IT TO A (optional: AUTHORIZED) SERVICE CENTER: Out of luck. This is the furthest I can help.
ALTERNATIVE DRYING METHODS:
A)PUT IT IN RICE FOR A DAY: NO, Asians won't come to repair your phone. Rice acts like silica, which absorbs moisture like sponge. I suggest you disassemble the phone first as rice might get into the small holes around your phone.
B)SOAK IN ALCOHOL, THEN PUT IT OUT: Disassemble it first, too. Though I haven't tried this method, there are those who have proved it to work.
C) RADIATOR DRYING (suggested by georgeiulian89): I've turned it off,i've removed the back cover, took out the battery, sim card and sd card, and i've put the phone on the radiator (i've put a towel between the phone and the radiator and i've placed the phone on the towel). I've left the phone about two hours to dry, and then i've inserted back the sim, sd card and the battery and turned it on.
C)DRY IT WITH A HAIRDRYER: NO. RISKY METHOD. Water will evaporate, then condense back somewhere once you've done hairdrying your phone it will condense back. I tried it and it condensed on my phone's camera lens. (It's a hairdryer, not a phonedryer!)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Hope this tutorial helps those out there whose phones have went swimming (or diving)
THANK ME IF I HELPED ​
Click to expand...
Click to collapse
add in: make sure the ribbon connector is clean before connected, if dust(or any tiny electric conductor) stick at connector while connecting them, you will have high chances to spoilt the phone.

[Q] if I plug phone in, it tries to boot

phone might have gotten wet inside - tried to clean screen and it started looking splotchy. Previous owner put some plastic screen protector on it. when I try to charge it either using usb or magnetic charger it vibrates three times and then does it again until I disconnect it. if i use Emma it recognizes phone very briefly until phone tries to reboot. Seems like some kind of funny bootloop. I have it sitting in uncooked rice in case it got wet inside. but something like this happened to a Note 1 that I had (didnt get wet)and there was a key combo that got me to recovery. Any ideas?
nazcalito said:
phone might have gotten wet inside - tried to clean screen and it started looking splotchy. Previous owner put some plastic screen protector on it. when I try to charge it either using usb or magnetic charger it vibrates three times and then does it again until I disconnect it. if i use Emma it recognizes phone very briefly until phone tries to reboot. Seems like some kind of funny bootloop. I have it sitting in uncooked rice in case it got wet inside. but something like this happened to a Note 1 that I had (didnt get wet)and there was a key combo that got me to recovery. Any ideas?
Click to expand...
Click to collapse
Sounds like an internal issue, not sure if water would do that as I've had my ultra in water with the cover off. I would flash a stock rom

Phone Dies when not plugged in

Alright, I've got a hum-dinger here. I've been running CM12 for some time now, I started noticing much more frequent blue screens due to modem crashes so I wiped and reinstalled the ROM. Now I'm getting a really strange problem where so long as the phone is plugged in to something (charger, or computer) I can use the phone completely normally. The moment I unplug I get 1 of 2 scenarios:
1: the screen immediately goes blank (no power down sequence, no blue screen) and I'm kicked back to LG splash screen which then proceeds to go to the power off state. Attempting to power on again gets as far as the CM12 boot animation and then screen goes blank again. I've tried powering on several times from the stage only to get part way through the boot animation and then kicked back to the black screen.
2: Screen does not immediately go blank, I can swim around the home screens scroll to an app, even start an app - but about 10 seconds into the app the screen suddenly goes blank and I'm back at scenario 1.
The only way to get the phone past the ROM boot animation is to plug it back into something....but then I can't unplug lest I end up back at scenario 1.
The shutdown sequence almost looks like I tanked the battery, but going into the recovery (TWRP) I can see that I actually have a good 98% left.
Thinking CM12 had some issues, I tried another Lollipop ROM (blisspop) and I got the exact same behavior. Thinking Lollipop was still half-baked for this LG I reverted back to a KitKat ROM (CM11) and I got....the exact same behavior.
I tried wiping all the data, system, cache, dalvik, partitions and reinstalling completely from scratch -- but I get the exact same problem. The only thing I haven't tried yet is LGNPST back to 100% stock, but I'm struggling to see what difference that would make as I'm wiping out everything except the recovery between tries.
Anybody have any ideas, thoughts, comments? I'm grasping at straws here.....
You could always try to load the stock rom back on the phone to see if that does anything. Another thing you can try is to power off the phone, plug it up to the charger and see if it charges overnight, however I have a sneaking suspicion that the battery is toast.
Kilogrm, I've left it charging overnight and and am able to carry it around all day without issue doing the occasional glance at the time, but if I try to do anything of significance I will end up at a black screen again, so I'm rather inclined to believe it isn't the battery. I do have a replacement battery that I bought a while back that I never got around to installing....so I could try that.
I'm guessing that if I'm going to install a stock ROM I might as well just LGNPST back to stock....thoughts?
Ok well I used LGNPST to go back to JellyBean Stock, and I got the exact same behavior. I'm thinking it might be a hardware problem, but not sure what.
Well, it was definitely a hardware problem. I opened up the phone and took a look at the rigid-flex board that LG used to connect to the micro-usb jack and I noticed that one of the footprints was missing a component. I quick look around showed that a small(looked like 0402 size) diode had somehow sheared off at the solder joint and was rolling around in the case. I soldered it back on, replaced the battery with the new one I had gotten and closed the phone up. Everything works like a charm again. Now I just have to go back through the root/freeg/rom process again because I flashed all the way back to at&t ROM.
Remove the back cover, remove tiny screws on bottom and pop the cover off. There are another two tiny screws holding the battery connector on the pcb. Unscrew the tiny screws and unplug the battery, then plug in to power. Then unplug, plug battery in and plug power in. Let it charge. This added 8 extra hours on my battery from 15 hours to 24 hours. It appears to be going up too if u drain it to 0 dead and charge to 100 and unplug. Do it over and over again forever and the battery will slowly repair the damage.

moisture detected

Since last night I've been getting moisture detected on my note8.
But unlike other cases,this only happens when the phone is off and wont charge unless I put on.
Please i need help
brayne_lil said:
Since last night I've been getting moisture detected on my note8.
But unlike other cases,this only happens when the phone is off and wont charge unless I put on.
Please i need help
Click to expand...
Click to collapse
Hi there. It happened to me too. I tried everything and nothing worked. At the end I ordered an usb-c Board for the NOTE 8 from ebay for 7€ and replaced it. Because of the moisture error my Gear VR whould not turn on.
Anyway 7€ for the Board and 10€for the Glas Back Cover. I actually managed to save my original Backcover.
This obscure solution worked for me!
Same problem here. I tried a ton of fixes: new cables, new chargers, safe mode boot, USBDevice data wipe, Dalvik Cache wipe, full reset, etc. but none of them worked for me. Closest I got was holding down Bixby button on boot and then plugging in cable-- which would let me charge normally UNTIL I unplugged the first time; would always get moisture detected after that until next reboot....
UNTIL I found this solution in a single obscure Youtube comment:
1. Reboot
2. Plug in cable on first logo
3. Unplug when 1st logo goes away
4. Quickly plug in again on 2nd logo.
It worked like a charm for me. Now I have no issues.
This confirms to me that there was some odd software flag that was tripped. My guess is that there's a baseline voltage the phone measures for charging, and when the voltage is under that baseline, it throws a moisture error. I bet this sequence causes the phone to measure a new baseline, thus resetting the bad data that tripped the moisture flag previously.
Just a guess, but would make sense.
brayne_lil said:
Since last night I've been getting moisture detected on my note8.
But unlike other cases,this only happens when the phone is off and wont charge unless I put on.
Please i need help
Click to expand...
Click to collapse

Bricked my phone - help please

Hello, good day to you, thank you for reading this and attempting to help me, here's what happened:
My Tecno Phantom X slipped into the bathtub from the charging port side, I took it out, dried it, opened it dried it from the inside with medicinal alcohol, left it in the sun for an hour or so, wouldn't turn on, nor charge, so I left it open for 24h, then it started holding a charge, turned on fine and everything except that the fingerprint sensor wouldn't work at all not even show in menu, a few hours later it started randomly turn off, literally randomly, could be in 5 mins or 20, could be when the display is on or not, sometimes it would restart or just turn off OR when it's in the recovery or fastboot screen, so I figured it could be something software, tried soft reset and hard reset, nothing.. I unlocked the booatloader, rooted the phone and attempted to flash a stock rom, SP flash tool would always give me the same error "status brom cmd send da fail" so I tried with ADB, I screwed things up, I flashed with fastboot flash recovery sth.img. Afterwards, it would either show the battery without percentage, or boot into "Tecno, powered by Android" and be stuck there, SP Flash tool gives me the same error as before but still detects it, ADB does NOT detect it whatsoever, I have tried so many things, nothing worked, any help would be really appreciated
Thank you for your time and attention,
Welcome to XDA, water victim
You need resolve the water issue first.
Only anhydrous 99% isopropyl alcohol as a drying agent. NEVER use this on a LCD display as it will poison and destroy it.
Likely the phone wasn't completely dry.
Disconnect the battery. Always do this ASAP when there is water contamination.
Reflush with anhydrous isopropyl alcohol, get as much as the alcohol out of it as possible. If the alcohol gets in between the display and the glass it will leave a water mark.
Clean low pressure (5-10psi) air can be used, carefully!!!
Otherwise use centrificule force to fling it out.
Place on end with a fan blowing on it in a warm, dry room for at least 72 hours. The ribbon connector plugs must be completely dry, removing can speed things but be careful not to damage them. The mobo is also suspectable to ESD damage when out of circuit ie ribbon cable unplugged.
USE YOUR BEST JUDGMENT! Adjust according to what you see.
Only after it's completely dry can you do a damage assessment.
Also bare in mind the CPU and maybe other chipsets are BGA's [ball grid arrays).
Their dozens of solder pads are under the chipset with only a very thin gap, the perfect place for water to be trapped. If present this must be completely evaporated... that takes time.
Some heat up to 120F is ok but don't go too nuts.
Keep the display out of direct sunlight.

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