Hi guys,
I had to change both display incl. frame and battery because a barbell fell on my Mi9. This bent the phone at the place of the battery and completely destroyed the display.
I was able to repair the phone quickly, but unfortunatly I did not glue the new battery. Now I was mountain biking and due to the vibrations the battery was torn from the mainboard and parts of the battery cable got stuck in the connector. I had these parts removed carefully by a watchmaker and he assured me that the connerctor looks undamaged.
But now I have the problem that the phone won't start when I insert the old (minimally) bent battery. It does not respond to any input. Only when I charge it, the LED is blinking slowly and the MI Start logo appears for 1/4 second. This process is repeated continuously. The battery also warms up slightly, showing me that it is being charged and that the connection is basically established.
Can you detect a defect on the board by this error description or is this a "typical" battery problem? Or does this error description look familiar to you otherwise?
Thanks for all suggestions,
Mike
Well I'd say that will be a hard problem to diagnose without knowing what to look for, and I definitely don't know but what I'd suggest so you can rule out the battery problem is to try a different battery in the phone and see if you get the same response. If it works happy days problem solved. If not it is more than likely a main board problem or charging connector.
Related
I made the mistake of forgetting to put my phone in my backpack while riding splash mountain at Disneyland. Needless to say, my phone got pretty damn wet! When I got the chance, I immediately removed the battery and let the phone dry for almost a week.
I was extremely worried when I plugged in the charger and got the red light o' death. After searching the forums I found that is was just a dead battery. So I quickly ordered a new one on ebay and I was back in business. Or at least I thought I was.
My phone seems to be fine, other than the fact that when it is plugged into a charge source, it does not charge the battery whatsoever. No matter what I use, (Car, AC , Computer) it states that is connected and charging for the status, orange light and everything, but the battery will continue to drain.
I know it is not a connection issue due to the fact that I can still synch it with my computer. For now, I have ordered 3 batteries and 2 external battery chargers for work and home. Does anyone have an idea on what part of my hardware is damaged so I can possibly get it replaced?
B-timw said:
I made the mistake of forgetting to put my phone in my backpack while riding splash mountain at Disneyland. Needless to say, my phone got pretty damn wet! When I got the chance, I immediately removed the battery and let the phone dry for almost a week.
I was extremely worried when I plugged in the charger and got the red light o' death. After searching the forums I found that is was just a dead battery. So I quickly ordered a new one on ebay and I was back in business. Or at least I thought I was.
My phone seems to be fine, other than the fact that when it is plugged into a charge source, it does not charge the battery whatsoever. No matter what I use, (Car, AC , Computer) it states that is connected and charging for the status, orange light and everything, but the battery will continue to drain.
I know it is not a connection issue due to the fact that I can still synch it with my computer. For now, I have ordered 3 batteries and 2 external battery chargers for work and home. Does anyone have an idea on what part of my hardware is damaged so I can possibly get it replaced?
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Click to collapse
Ouch. If its what happened to me, its the USB port.......... part of the mainboard. Luckily mine was under warranty so I took it back to get another one. Mine didnt get wet though, but similar symptom. My usb port got blown by plugging in the wrong USB charger. I could sync, but not charge what so ever.
If its in warranty and your internal water markers arent red ( still white and dry ) Id try sending it back for a warranty exchange.
How spotless are the battery contacts - try some contact cleaner.
B-timw said:
My phone seems to be fine, other than the fact that when it is plugged into a charge source, it does not charge the battery whatsoever. No matter what I use, (Car, AC , Computer) it states that is connected and charging for the status, orange light and everything, but the battery will continue to drain.
I know it is not a connection issue due to the fact that I can still synch it with my computer.
Click to expand...
Click to collapse
Have you checked that the option of not charging the battery while connected to the PC isn't ticked - if it's ticked, that'll explain why it's not charging when connected to the PC (although I don't know about the orange light). I did have a problem with my battery only charging for 1 min and then the orange light extinguished. It turned out it was due to a film of grease/dirt on either the battery contact prongs of the phone or the battery terminals themselves. If you have some contact cleaner and a cotton bud (folks in the US call them qtips), it'd be worth giving both of those a carefull clean. Note: don't be tempted to bend the prongs to touch the battery harder - they'll be fine as is as long as their surface is spotless.
Have you checked the water sensitive sticker under the battery to see if it's registered water in the phone - you may have been lucky and the water didn't get right into it. If there's no sign of that having indicated water ingress then if it still plays up after cleaning the terminals, you could try getting it repaired under warranty. The TyTN II charging system as a whole is a bit of a nightmare. As well as the problem I already mentioned, my HTC original charger only lasted 4 charges (a couple of weeks because I was mostly charging off the PC at the time) before going 'click' very loudly and going to the great charger graveyard. I bought a better repalcement for only £8.99 rather than getting another one the same under warranty which may only last another 4 charges.
The option of the battery not charging while connected to the machine isnt checked. I have a similar thing going on with the orange light. But it will happen at random times. (longer than a minute.) I will try cleaning my connectors to see if this helps. There was a little water under the battery when I removed it, and my sticker is pink.. So im thinking its showing signs of water damage. Another thing, my roomate has the same model, and when the battery is removed and a charger is plugged in, there is no light indication. But when I do the same thing I get the red light.
Hi, so this is a partial port of a thread I started over on the General forum.
I may have possibly water damaged my Captivate a few days ago. It wasn't submerged or anything, but was in my pocket when I got water on my lap, and didn't come out immediately.
I disassembled the phone and let it dry for a few days, and after putting the battery back in and starting it things seemed to be working fine. However, the battery was almost dead to begin, and when I plugged the charger into the USB port, I got an error about battery temp being too high and charging pausing as a result.
When I plug the phone in while it is off to the wall charger, I get a screen that flashes from the usual charging picture (the battery with a little bit of green in it) to a picture of a batter next to a caution sign and a high temperature thermometer.
What should I do? I see no signs of corrosion on the battery itself or the pins that connect with it. So long as the phone was not plugged in, I got no errors and it worked fine (on the 2% battery life that is now extinguished). This leads me to believe the problem is in the micro USB port on the top of the phone, but I can't be sure. I cannot see in it very well and don't want to disassemble it unless I have to.
Should I just buy a new battery? Will I never be able to charge my phone through the USB jack? Does this mean I should get an independent charger for the battery, and just juice it up that way from now on (a big hassle)? Any and all advice or experience appreciated.
Has nobody had any experience with this?
If a phone gets wet when power is applied (ie: sleep mode), usually it doesn't matter if you let it dry. The damage is already done. Moisture in the usb connector can do all kinds of weird things to a phone.
Have you tried cleaning the gold battery contacts on the phone and the battery? You can use rubbing alcohol on the phone contacts, followed by a white eraser.
I'd go ahead and buy a new battery. If it doesn't work, you'll have a spare when you buy a new phone.
kegobeer said:
If a phone gets wet when power is applied (ie: sleep mode), usually it doesn't matter if you let it dry. The damage is already done. Moisture in the usb connector can do all kinds of weird things to a phone.
Have you tried cleaning the gold battery contacts on the phone and the battery? You can use rubbing alcohol on the phone contacts, followed by a white eraser.
I'd go ahead and buy a new battery. If it doesn't work, you'll have a spare when you buy a new phone.
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Click to collapse
I haven't tried using isopropyl yet. There doesn't seem to be any corrosion on the contacts whatsoever, so I didn't think it necessary. I'll give it a go.
It may be worth nothing that neither of the water indicators have turned color. Of course, the USB jack is a long way from where those water indicators are... It is completely plausible water got in there and never got down to the battery or contacts. Like I said, the only problems I've encountered are when the phone is plugged in to the charger...
Thanks for the advice though. I'll try it. If not, maybe its time to consider dismantling this thing and attempting a wipe down of the USB jack...
When connected to charger:
-The red LED flashes, and it does not react to the power button, I tried every combination, no use
When not connected to charger:
-Nothing works, it does not show even slight signs of life
The problem happened when I was replacing the front camera because the camera stopped working. The next thing was it won't turn on. It may be a faulty camera that caused a short circuit. I was not sure, so I opened it, tested the battery with multimer, it did not provide any output. Then I checked the pins on the motherboard, and it showed 1.12V exactly.
I know from other phones that the voltage that motherboard gives is usually higher, around 4V so I'm not sure if the issue is on the motherboard or in the battery itself. The weird thing is that the battery was charged, around 50% and now it does not even react.
Any help will be appreciated.
EDIT: I found the problem on my battery flex cable. The service that worked on my phone before must have damaged the flex and it was making direct contact on the motherboard. Luckily it caused the battery circuit to fail and not to damage the motherboard.
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.
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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...
Hi everyone,
I'm really hoping someone can help me.
I have a Samsung galaxy tab s2 8inch. It is the SM-T710.
It was working fine playing music on a Bluetooth speaker system then the battery died.
Tried to charge it and it was acting funny, said it was charging then got to one or two percent and i attempted to power on while the device is on charge and it powered on then turned off within a few seconds.
Let the tablet charge for a while now and its not really going up and the screen has gone off and its not turning on and i now notice its getting really hot at the bottom part of the screen slightly above the home button.
Removed the charger and left it for one hour, then came back and tried with a different new genuine Samsung charger and cable, and still getting extremely hot within a few 5 - 10 seconds just above the home button.
Unplugged it and left it till the next day and attempted to charge it again same thing.
I though it could be either: A faulty battery or A faulty Micro USB charging port flex (possibly short circuiting).
Now Ive opened up the whole device and taken apart every item on the mother board following a tear down video on YouTube.
I then connected a brand new genuine battery to the board and removed the old one, and the device was still overheating however this time i could pin point the exact source of heat on the motherboard which i will circle on an image but cant attach to this post as i need ten posts.
The images are on my public google drive but i cannot share the links here any ideas?
I then thought the micro USB charging port flex is causing a short circuit and so i completely disconnected that and the overheating problem still occurred.
Then i disconnected each and every component one by one and still the same thing on the motherboard keeps overheating excessively within seconds of connecting the battery to the motherboard.
Now Ive completely removed the motherboard from the frame and Ive connected the battery to it and same overheating issue.
Now Ive reconnected just the micro USB charging port back to the motherboard and attempted to plug a charging cable into the port and exactly the same thing still overheating excessively.
I really do not want to replace my motherboard simply because of the data on the device etc.
Can someone please tell me what the red circled item is in my image so i know what is overheating!
Could it be the CPU?
Is there ANY other way to replace JUST that part, even in china? Can anyone advise or help me?
Many thanks to the people who patiently read this and helped.
Kaiser
London, UK
+1
I guess the motherboard got corrupted
First off, do not boot up an almost empty device. Second, it is entirely normal that the bottom area (charging port, home button etc) gets hot while charging. It will fade after the battery got some essential energy. Third, do not deplete the battery completely, if possible. In the long run it may damage the longevity of the battery.
Was there ever a solution to this issue? I'm having the same problem.