[Q] Samsung Galaxy aren´t booting - Android Software/Hacking General [Developers Only]

Hello,
I have a big problem. Have a few weeks ago rooted my Samsung Galaxy with
"One Click Lag Fix" and "z4root" for the file system "ext2"
Yesterday I put my phone to the PC and gravel immediately make a firmware update to JPM7 (I think to know.)
Now my phone will not boot. Or it starts already have, but only up to a glowing "S". Then it vibrated repeatedly at irregular intervals. That was it
Have been out of battery, battery clean. A few hours leave. The three-button trick tried, but nothing works. If I turn it on the PC to plug in, it will be charged only similar but not as a mass storage device detected.
Is there hope for me?
Thanks before.

Related

galaxy s 2 acting strangely, battery drain and randomly going into driving mode

I got my sgs2 about a month ago and its been like a dream, battery lasts for a long time phone runs ultra smoothly no glitches and nothing weird has been happening, but these last few days its just been really weird.
1) it started randomly going into driving mode, i dont even know how to activate it or what it does, but i think its draining my battery
2)When i was watching a tv show on my phone it thought that there was an hdmi cable connected and wouldnt let me hear anything through my headphones. i exited it several times but it still though there was a cable connected. Then i went straight home and quit it from the task manager and it worked with the headphines but that might have been a coincidence.
3)When i connect the charger it takes a while to realize that its charging and sometimes stops charging and says that the battery is too hot or too cold but when i feel the phone it feels completely normal.
4)When i connect the usb cable, other than taking a while to realize that its connected to a charger it doesnt realize that its a usb so i cant transfer files with my computer which i do often
5)I pressed home before and it took me to some sort of clock which i imagine is for a dock but i have no such thing
6) Even after using the phone for a while and using several apps the android os has used 59% of my battery, when usually its the display that uses about 30 or 40%
none of these things had happened before and now they randomly started all at once, i havent downloaded any shady apps so i doubt its malware
any ideas?
thanks
Are you using a stock firmware or custom?
Have you tried resetting back to factory default?
camiloorozco said:
I got my sgs2 about a month ago and its been like a dream, battery lasts for a long time phone runs ultra smoothly no glitches and nothing weird has been happening, but these last few days its just been really weird.
1) it started randomly going into driving mode, i dont even know how to activate it or what it does, but i think its draining my battery
2)When i was watching a tv show on my phone it thought that there was an hdmi cable connected and wouldnt let me hear anything through my headphones. i exited it several times but it still though there was a cable connected. Then i went straight home and quit it from the task manager and it worked with the headphines but that might have been a coincidence.
3)When i connect the charger it takes a while to realize that its charging and sometimes stops charging and says that the battery is too hot or too cold but when i feel the phone it feels completely normal.
4)When i connect the usb cable, other than taking a while to realize that its connected to a charger it doesnt realize that its a usb so i cant transfer files with my computer which i do often
5)I pressed home before and it took me to some sort of clock which i imagine is for a dock but i have no such thing
6) Even after using the phone for a while and using several apps the android os has used 59% of my battery, when usually its the display that uses about 30 or 40%
none of these things had happened before and now they randomly started all at once, i havent downloaded any shady apps so i doubt its malware
any ideas?
thanks
Click to expand...
Click to collapse
seems like majority of your problems are linked with the micro USB port, try resetting your phone and see if that helps. This is weird though.
It happened once to me on my sgs but that was because I inserted the charging pin without realising it was wet but it went back to normal a few days later and I changed my charger.
i was also starting to think it would be a micro usb problem,
would a factory reset fix it?
if so how would i back up my apps so that i have the same apps with the same progress on them, is it even possible?
or should i just wait and see if it goes back to normal?
I am also having this issue now. I've tried a factory reset with no effect. The phone is now largely unusable. Did you get a resolution? If so, how?
im having the same problem too .. wish it's just a software issue!!
the problem solved itself after a couple of days, i took out the battery and left the phone alone for about a day and after it worked fine again, not sure if it was the time or leaving it without battery but its working normally again
I'm having this exact problem - phone switches into driving mode, then says MTP is connected - then it switcheds to a strange lock-screen I have never sen before. It's really strange. I flashed a nandroid backup from a few months back and still the problem is there. I'd flash back to stock and send it in - but I can't connect to Odin via USB because of the problem. Is there anyway to convert a Stock rom to a CWM flashable file?
I'm desperate to get this sorted.
Experiencing the same. Has anyone a proven solution for this?
My phone, sorted itself out - should I say my wife sorted it out - by mistake. What I think she done was hold down the home button, and then pressed the power off button together and held them untill the phone switched off. When my phone came back on again - she had somehow removed the -Exclamation Triangle of the kernel counter and removed the problems from this post - that I'd been experiencing for abouyt 5 months prior.
Go figure - I now have a SGS2 that works beautifully again and has also had any kernel counter and Custom Rom flashing notifications removed altogether. I wish I knew why this worked, as I'm sure their are many who would like to remove the Triangle without a jig.
The other option that seeemd to work for other people was to clean the MicroUSB port of the device with a dry, clean toothbrush - though this did nothing for my problem. Good luck -I know how frustrating it is.
Help Please
Guys, I am Facing the EXACT same problem.
1.Driving mode on/off automatically
2.Showing a lockscreen which shouldn't have existed on this planet.
3.Hanging up unconditionally. Have to restart phone.
4.Sudden "mtp connections" and because of that "Media Scanner"
I own a Galaxy note just 1 month old! I was so angry that i wanted to sell this. But i couldn't adapt to any other smaller screens so, guess ill try fixing this.
1.It definitely is something related to usb port (Since i cannot charge my phone, i use an external charger)
2.Took my beloved to a samsung service centre, they said phone is waterlogged and showed me the motherboard, saying"IC MIGHT be damaged"
3.Cost for repair - $200
4.Cannot afford that. I am guessing they were bluffing cause i saw the shiniest motherboard ever
5.Please fix this, or ill be stuck with a Nokia 500 !!
6.I can, however afford changing the usb connector, anyone successful with that?
Edit: Did my homework and found out that its definitely a usb port problem. Solution:Clean the usb port. Ill try try it and get back to you ppl. Oh and about 20% of the world's population is facing the same problem.
Edit(2): SOLVED!!!
1. Turn Off phone
2. Remove battery.
3.Take a Brush with hard bristles(Toothbrush/Artist's Brush)
4.Take a pin.
5.Take your own sweet 15mins to perfectly clean the micro usb port using the brush. Nicely and Tidily, give all possible strokes to flawlessly remove any dirt in there.
4.Then take your pin(Be careful here) and gently insert it into the gap between that small metallic micro slab and the bottom part of the usb Connector and gently move it up, VERY GENTLY!!!
5.Clean the battery's charging plates using a cloth, i used my own T-Shirt.
6.Put battery in and REBOOT.
7.Clean the charging pin of the charger using the safety pin/Brush or both.
I have it on for 15mins and no problems. Removed and put the charger again and again, still no problem. After waiting for 1 week, i am able to charge it using its charger! Now lets see whether it lasts......:-/
Edit(3): So, my phone acted up again last night, with driving mode and car dock. I used the pin solution, No problem till now. its Peacefully charging. Bah! it really is annoying
Edit(4): Now, its been 24 hours since my last solution, and phone hasnt acted strange. I guess after another 12 hours ill rule out the permanent solution. Which i used.
same here
Well.. I'm having similar issue. Battery drain and random driving mode/voice search sometimes. It all started after last OTA update and rooting without changing a ROM to custom. I've clean out USB port and no result. Maybe it's time to scan system with AV or unroot device...
eihwazz said:
Well.. I'm having similar issue. Battery drain and random driving mode/voice search sometimes. It all started after last OTA update and rooting without changing a ROM to custom. I've clean out USB port and no result. Maybe it's time to scan system with AV or unroot device...
Click to expand...
Click to collapse
The problem is the stock firmware
Sent from my SGH-I777 using Tapatalk 2
Phalanx7621 said:
The problem is the stock firmware
Sent from my SGH-I777 using Tapatalk 2
Click to expand...
Click to collapse
I've loaded CM9 on my international Galaxy Note and the car mode still pops up randomly all of the time.
ckeswar critics,
davearose said:
I've loaded CM9 on my international Galaxy Note and the car mode still pops up randomly all of the time.
Click to expand...
Click to collapse
I had the same issues 2 weeks after i bought my galaxy s2. Took it to Samsung customer care and they replaced the micro usb port. Haven't had a single issue since.
PS: Try to dry out the port and the phone if it is a water logging issue. I used a hair drier to do that. Luckily the tab that indicates water damage hadn't changed colour.
Had same issue with my Samsung Galaxy Note - randomly going in and out of driving mode, used a dry, soft toothbrush to clean out the USB Charging port, so far so good.
Make sure to flick the bristles of the toothbrush back and forth with your thumb first as you might see a lot of dust fly off of it.
Don't use anything hard like a pin or needle as you might scratch the contacts.
archer2009 said:
Had same issue with my Samsung Galaxy Note - randomly going in and out of driving mode, used a dry, soft toothbrush to clean out the USB Charging port, so far so good.
Make sure to flick the bristles of the toothbrush back and forth with your thumb first as you might see a lot of dust fly off of it.
Don't use anything hard like a pin or needle as you might scratch the contacts.
Click to expand...
Click to collapse
Same here with my gs2... Resolved the issue using some contact spray on my micro USB port.
camiloorozco said:
I got my sgs2 about a month ago and its been like a dream, battery lasts for a long time phone runs ultra smoothly no glitches and nothing weird has been happening, but these last few days its just been really weird.
1) it started randomly going into driving mode, i dont even know how to activate it or what it does, but i think its draining my battery
2)When i was watching a tv show on my phone it thought that there was an hdmi cable connected and wouldnt let me hear anything through my headphones. i exited it several times but it still though there was a cable connected. Then i went straight home and quit it from the task manager and it worked with the headphines but that might have been a coincidence.
3)When i connect the charger it takes a while to realize that its charging and sometimes stops charging and says that the battery is too hot or too cold but when i feel the phone it feels completely normal.
4)When i connect the usb cable, other than taking a while to realize that its connected to a charger it doesnt realize that its a usb so i cant transfer files with my computer which i do often
5)I pressed home before and it took me to some sort of clock which i imagine is for a dock but i have no such thing
6) Even after using the phone for a while and using several apps the android os has used 59% of my battery, when usually its the display that uses about 30 or 40%
none of these things had happened before and now they randomly started all at once, i havent downloaded any shady apps so i doubt its malware
any ideas?
thanks
Click to expand...
Click to collapse
It's just a software problem, the reasons might be:-
1) you might have opened and closed some huge apps randomly and very rudely..
2) You are low on space on the internal MMC Card
3) Your phone might be performing the restarting apps re scheduler
Solutions:-
1)Factory Data reset will not help as the cache section might be corrupt.. neither the android 3e will help...
2) a)Use odin and download the Latest firmware package from Sammobile's Website.
b) for tutorial on flashing, go http://forum.xda-developers.com/showthread.php?t=2488942.
c) Do not touch the phone after processes and restart was observed...
d) Again get into download mode and re flash the same Firmware again...
e) Restart the phone holding the HOME key, (it won't do anything by itself)
f) it will surely fix your Phone
3) Message me if any problem persists...
avaneesh3 said:
1. Turn Off phone
2. Remove battery.
3.Take a Brush with hard bristles(Toothbrush/Artist's Brush)
4.Take a pin.
5.Take your own sweet 15mins to perfectly clean the micro usb port using the brush. Nicely and Tidily, give all possible strokes to flawlessly remove any dirt in there.
4.Then take your pin(Be careful here) and gently insert it into the gap between that small metallic micro slab and the bottom part of the usb Connector and gently move it up, VERY GENTLY!!!
5.Clean the battery's charging plates using a cloth, i used my own T-Shirt.
6.Put battery in and REBOOT.
7.Clean the charging pin of the charger using the safety pin/Brush or both.
Click to expand...
Click to collapse
I registered on this forum just to say that this is a great solution. It looks like my phone is saved now
Hope it will not happen again.

bricked S7?

Hi,
I think I have bricked my S7.
Yesterday I installed Superman Rom and everything was working fine until this afternoon.
I played a bit around and somehow my S7 got stuck and it seemed like i messed something up. I was in some kind of bootloop so i flashed everything new -Bootlaoder, Modem and Superman Rom.
Now I have a black screen and the LED is light up in blue.
I can't do anything. Tried to restart with Home Vol- and Power key but it doesn't work.
If I connect it to the Computer it won't be recognized.
Strange thing is, if I press the Power Key the computer recognizes Exynos8890 in the device manager, but only if I keep pressing the power key.
As soon as I release the power key the computer recognizes nothing...
Does anyone have an idea?
Try holding Volume Down & Home & Power until the phone reboots twice, keep the buttons pressed for 2 full reboots, and hopefully the 2nd one will get you back into download mode
Thank you for your help!
I tried that but it doesn't work.
It's strange because I can do what I want and nothing happens.
Black screen and blue light. It doens't even turn off or reboot...
Only thing what happens is that exynos8890 appears in the device manager as long as I keep pressing the power button.
Same problem as me?
http://forum.xda-developers.com/galaxy-s7/help/boot-loop-bricked-t3499109/post69596073#post69596073
Sounds different.
Because you are able to get into recovery and download. I'm not able to do that
alexx3333 said:
Sounds different.
Because you are able to get into recovery and download. I'm not able to do that
Click to expand...
Click to collapse
How long are you holding the button combination for?
Try 30 seconds+
I tried for several minutes, but the phone doesn't do anything.
I can only think you'll need to wait until the battery runs out, the phone shuts off, then when you charge it again, try the download mode button combo when you power it back on
Ok thank you.
I thought the same.
Unfortunately the battery was at 90% so I think it will take a few days/weeks until it dies...
alexx3333 said:
Ok thank you.
I thought the same.
Unfortunately the battery was at 90% so I think it will take a few days/weeks until it dies...
Click to expand...
Click to collapse
Connect the white Micro > Normal USB adapter that came with the phone to the MicroUSB port, and connect a power hungry USB device to it, I just tried with a USB desk fan and the phone powered it on spinning
That will drain the battery quickly
Great idea but it doesn't seem to work.
Looks like I have no power in the USB connection.
Seems like the phone is totaly frozen.
Ok so how it looks at the moment, my only choiches are wait several days until the battery dies (don't know how long this will take) or sending it to Samsung for a repair.
Thank you for your help!
Good luck, if I think of anything else I'll reply here, hope you get it sorted
EDIT - Did you try holding the power button while you had the USB device connected, to see if it provides USB power then?
Wow, the exact same thing literally happened to me yesterday.
I wasn't doing anything to the phone - it's completely stock and unrooted, and I wasn't messing with anything. At the time it happened, I scrolling through the task switcher when all of the screenshots of running apps suddenly became white squares. I tried pressing the home button but it didn't respond (though I could still scroll fluidly through the white squares). A few seconds later the screen went black and that was it. Dead dead dead. Totally bricked. The only response I can get is "Exynos8890" in the Device Manager when holding the power button, just like you.
This really sucks because I paid full cash and imported an international version, so I have no warranty. I'm off to the Samsung store to plead with them about honoring the warranty anyway, maybe if I offer some cash on top.
I suspect the storage chip failed. Yesterday before it died, I was downloading all of my images off of the SD card to organize them, and I noticed that about 5% of them failed to copy due to an unknown I/O error. Of course I assumed this was a corrupt SD card, not internal storage. I did manage to pull them all off (though some were damaged) through a combination of adb shell, dd, and adb pull. During the process the phone hard-locked a few times, but each time I was able to reboot via the VolDown+Power combo.
When the phone finally died for good, it was several hours after I had finished copying the photos and since hte last reboot. It had been working perfectly since then - I was browsing reddit, watching netflix, etc. However, given that I got the white squares in the task switcher right before it kicked the bucket, I think the internal storage was actually to blame, not the SD card. The white squares indicates that it was trying to fetch the screenshots off the disk and failing.
It's very odd that I cannot find any other instance of this kind of failure on the internet except this one thread, which happened on the exact same day that my phone died. Very strange.
*Detection* said:
Good luck, if I think of anything else I'll reply here, hope you get it sorted
EDIT - Did you try holding the power button while you had the USB device connected, to see if it provides USB power then?
Click to expand...
Click to collapse
Yes I have tried that but no power at all...
stoanhart said:
Wow, the exact same thing literally happened to me yesterday.
I wasn't doing anything to the phone - it's completely stock and unrooted, and I wasn't messing with anything. At the time it happened, I scrolling through the task switcher when all of the screenshots of running apps suddenly became white squares. I tried pressing the home button but it didn't respond (though I could still scroll fluidly through the white squares). A few seconds later the screen went black and that was it. Dead dead dead. Totally bricked. The only response I can get is "Exynos8890" in the Device Manager when holding the power button, just like you.
This really sucks because I paid full cash and imported an international version, so I have no warranty. I'm off to the Samsung store to plead with them about honoring the warranty anyway, maybe if I offer some cash on top.
I suspect the storage chip failed. Yesterday before it died, I was downloading all of my images off of the SD card to organize them, and I noticed that about 5% of them failed to copy due to an unknown I/O error. Of course I assumed this was a corrupt SD card, not internal storage. I did manage to pull them all off (though some were damaged) through a combination of adb shell, dd, and adb pull. During the process the phone hard-locked a few times, but each time I was able to reboot via the VolDown+Power combo.
When the phone finally died for good, it was several hours after I had finished copying the photos and since hte last reboot. It had been working perfectly since then - I was browsing reddit, watching netflix, etc. However, given that I got the white squares in the task switcher right before it kicked the bucket, I think the internal storage was actually to blame, not the SD card. The white squares indicates that it was trying to fetch the screenshots off the disk and failing.
It's very odd that I cannot find any other instance of this kind of failure on the internet except this one thread, which happened on the exact same day that my phone died. Very strange.
Click to expand...
Click to collapse
That sounds exactly like my Problem.
A faulty storage chip would also explain my Problems before the phone died for good.
The day my phone died I had some Problems. The phone was frozen from time to time until it got into the bootloop, but I thought I messed something up in the Rom because I did a lot of testing and the Combo also did work.
After reflashing the Rom everything seemed to be fine first until it died for good.
Yes it's strange, I also didn't find anything similar on the Internet.
I have learned my phone is from Nigeria. This should be a fun RMA process. FML
stoanhart said:
I have learned my phone is from Nigeria. This should be a fun RMA process. FML
Click to expand...
Click to collapse
Contact Samsung on twitter, unlikely they'll force you to RMA to Nigeria, they'll have service centres in your region
I managed to get Samsung Canada to refer me to a local service center. I drove 1.5 hours to go there today, the dude plugs it into a charger, and the damn thing just lights up like nothing ever happened. Now it's working fine, but I swear this thing was fully bricked before. The battery still had 73% charge when it came back alive...
I'm happy it's working now, but I'm worried it's just going to crap out again at any time.
Update: after the phone revived itself, it worked pretty well for a week. It locked up a few times, but I was able to reboot each time.
But, after a week, it hard-froze again. This time, it happened to be on charge while it froze so the green LED was on. It's been completely unresponsive for 2.5 weeks now, off charger, with the green LED on. I keep waiting for the LED to drain the battery, but it's taking forever. I'm losing hope that it will recover this time. I guess I'll re-start the process of getting in touch with Samsung, or alternatively, look for a replacement motherboard on eBay.
Does anyone know if the G930F motherboard fits into the G930FD body? I don't actually care about dual sim, but I'm concerned the SIM tray/slot won't work with the G930F motherboard.
Update:
so in the meantime the battery of my s7 died but that didn't change anything. I wasn't able to charge it after that so now it was completely dead.
So I contacted Sasmsung.
They replaced the motherboard and the USB connector on warranty.
Seems like it really was a hardware issue...
alexx3333 said:
Update:
so in the meantime the battery of my s7 died but that didn't change anything. I wasn't able to charge it after that so now it was completely dead.
So I contacted Sasmsung.
They replaced the motherboard and the USB connector on warranty.
Seems like it really was a hardware issue...
Click to expand...
Click to collapse
Hi,
Do you need Proof of Purchase for the warranty?
Thanks.

[Completed] Note 10.1 won't start or detected by pc,usb debugging is not on, by mistake!!!

I have the worst problem, it began after i upgraded GT-N8000 to kitkat,by UAE ROM, but it works for few months, and USB is not debugging enabled, by mistake...
Until i forgets it on the power fro four hours, then i discovered that it is rebooted and rebooted and rebooted and stuck on the samsung icon, i took it for samsung to fix it they told it is motherboard, and has a price more than the device itself, so i took it from them, and tried to start it, it is failed to start after... i removed the cover and removed the battery for a minute, useless, i couldn't turn it again, i did all the things on the internet, useless.
The PC is not detecting the device.
The device is not starting on.
the battery is removed many times, and plugged again.
Even i tried to charge the battery using its poles by a direct charger on it, while it is unplugged from the motherboard.
The device can't be started or give any power on the screen...
Kindly help... Thanks always in advance.
raedzahr said:
I have the worst problem, it began after i upgraded GT-N8000 to kitkat,by UAE ROM, but it works for few months, and USB is not debugging enabled, by mistake...
Until i forgets it on the power fro four hours, then i discovered that it is rebooted and rebooted and rebooted and stuck on the samsung icon, i took it for samsung to fix it they told it is motherboard, and has a price more than the device itself, so i took it from them, and tried to start it, it is failed to start after... i removed the cover and removed the battery for a minute, useless, i couldn't turn it again, i did all the things on the internet, useless.
The PC is not detecting the device.
The device is not starting on.
the battery is removed many times, and plugged again.
Even i tried to charge the battery using its poles by a direct charger on it, while it is unplugged from the motherboard.
The device can't be started or give any power on the screen...
Kindly help... Thanks always in advance.
Click to expand...
Click to collapse
Greetings and welcome to assist. It looks like you have already asked this question in the correct place
http://forum.xda-developers.com/showthread.php?t=3277850
So I'll close this one up
Good Luck
Sawdoctor

Coolpad E501 will stuck at COOLPAD screen when charged on a tab charger, and more.

So,, first of all, hello everyone! I'm new, I'm not a device-proficient, and I'm in a problem with my phone.
This might get complicated.
So my problem starts just some days ago. When I am charging my phone with a tablet charger, it now stuck on the COOLPAD screen when plugged in. It bricked itself, but if I restart boot the phone it will turn on and goes normal, so I turn it off again then charge it with an appropriate charger. And it works and charges. Although that usually the tab charger didn't do this to my phone before.
But then.... That's just the start.
When I booted it on after charge fully and then turned off for some hours, it will boot, but no sound coming when booting on COOLPAD screen, which indicates a problem. The booting on the screen of that takes long, very long then when it's On, surprise surprise the wifi can't connect to any nets suddenly, Sim card cant be read (indicated as No Service) , SD card not detected as well(also indicated as No SD card) . Seems like a malfunction. I had experience the same before 5 months ago (and it goes semi-perma so I asked Coolpad center for software reinstall).
So what did I do? I restarted the phone through the Chinese recovery mode. Booted up right, and back to normal. But this happens just when I boot it on morning now. I am scared this might get worse and will completely bootloop or brick my phone in the future (just like the same problem I face some month ago).
So should I never turn my phone off again or is there a fix for this? Tried factory resetting it in the past, the problem just got even worse so I won't do it again the third time my phone is broken again after software reinstall again. Please help, can't really switch phone until able to find a very reasonable priced ones.:crying:
NOTE: Some day before, my Coolshow app got disabled by Play Store because of "danger" reasons. It is a system app that comes with Coolpad. I can't enable it again because the enable app isn't there, just a greyed out Disable button. I don't like to reset the preferences of apps because it'll make me need to set everything up again. Problem already occurring 3 days ago, till now.

Poco X3 NFC - Can't access bootloader, fastboot or system (bootloop)

Hi. My close friend has this issue. I'm posting this because she can't figure it out by herself. A month ago, her phone downloaded an update and she installed it. Since then, the phone has restarted by itself without any reason, just random restarts and the frequency of restarts was more frequent with each day. Fast forward to this day and the phone is constantly turning up and shows the POCO logo and restarts by itself. This loop is not ending until the battery is completely dead. When trying to access fastboot or recovery mode, she can get there but only for few seconds (until the device restarts again) which is not enough time to make any changes / factory reset. She did not accessed developer tools in system, so the bootloader is still locked. Holding down power button does nothing. ONE SINGLE UPDATE screwed up whole phone. Can't do ****. There's no SD card or SIM card in the slot. Is there any "hack" to stop the phone from restarting itself? Note when the battery is completely empty and she plugs the charger, the whole nightmare starts again. I'm lost. Did you guys have any ideas what to do? Or is the repair centre only solution? (She cracked glass of the display, i'm not sure if that voids warranty. [it's not glass COVER, it's the glass which is part of the display])
Is this device unlocked? If not, then RMA.
If it is, my best guess is to get the device into recovery (or fastboot?) and immediately connect to PC.
If it holds, leave it there as it will charge, although at much slower rate.
When charged, use TWRP to try to reboot to system.
If it doesn't work, then factory reset.
Sadly, i can not get to recovery because in about 2 seconds the device will reboot. There's literally no time to make any changes - factory reset. Also the device is not unlocked. I hope RMA accept the phone even though it has cracked screen . Thanks for response anyway
Then RMA it is. If you're in EU they'll have to take it, even with the cracked screen.
But does the reboot happen even when connected to PC? Two seconds is enough to plug it in if you're fast...
Yeah, we tried every possible idea we can think of. Pressing the toggle button from different angles with different intensity to make sure it isn't stuck inside, covering up the proximity sensor (yeah makes no sense but even that we tried, lol). Tried with connected to PC as with classical charging brick. No change. Back in those days where smartphones doesn't have unibody construction and you were able to take down the back cover and remove battery it was way simple. Nowadays it's not possible to stop the phone from booting itself until battery is completely empty. My friend says the problem started about month ago, when the phone annouced that there is an update available so she downloaded it and installed it. Before that, there was no problem with the phone whatsoever. Maybe it's caused by some kind of virus but IDK which apps she was using. She didn't have rooted phone not unlocked bootloader in developer tools. Also i googled that it may be caused by "Airtel Thanks" app which she didn't have installed aswell. I will keep this thread updated as what happend to the phone cause i'm also interested what went wrong and to help future users who will struggle with this problem a solution. Thank you.
CaptainFedora, did you solve the problem? I have the same issue...
Yeah, actually. Sorry for not posting the answer although it was definitely her fault. It was the power button being pressed down (which made continuous bootloop). But the button was somehow pressed deep into the phone's body. So complete dissasembly was needed.
Btw. my friend lives in other country so we discussed this problem over internet. If i could have the phone physically with me i would definitely know what was the problem.
Hi.
Yesterday I had the same problem, the device kept restarting every 10 seconds, it didn't even come to any screen besides the first one with the POCO logo in yellow.
Things I tried that did NOT work:
restart
hard restart
fastboot (it did enter the fastboot mode, but only showing the picture of the 2 robots and after 10 seconds restarting again to the POCO logo image)
plug it to power
plug it to computer
After 3 hours of continuous restarting and trying anything I could find in the internet and I could imagine of (except extracting the battery because it seemed complicated and difficult to revert), I tried randomly something that miraculously worked...don't ask me why.
pressing the power button shortly and quickly around 30 times (it might have worked after 10 or 20, but I just kept doing it a little longer
Afterwards it just started as if nothing had happened...doesn't make any sense, but I just wanted to tell you in case you are in a similar situation and desperate to not lose all the images and videos as I was yesterday.

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