[Q] device remains on just until usb cable is connected to pc ! - Android Q&A, Help & Troubleshooting

Hi every one
some days ago my phone turned off unexpectedly and I found that it wont turn on until I connect it via usb to my PC!
other problem is with SIM card (may related to main problem):
operators network do not recongnized and device will turns off after some mintues if SIM is placed in device even I connected the usb cable.
after this problem I wiped all data and installed CyanogenMod 10.2.
my previous ROM was: CyanogenMod 10.1
Device model: LG-Prada P940
I just wana turn on my phone !
thanks

Is it still off?
Wiping data and re installing ROM should have worked!

deep4454 said:
Wiping data and re installing ROM should have worked!
Click to expand...
Click to collapse
yesterday device reboot at PRADA logo and now it wont start anyway
I think the battery is harmed and all problems are related to the battery.
Im trying to buy a new battery

Related

[Q] Multiple S2 issues since ICS upgrade

Hi everyone,
My apologies if these issues can be solved by searching, I have tried and have spent many days already trying to sort out these issues then more keep arising.
Issue #1: Battery drain
I have the dreaded Android OS/kworker/wakelock bug - I'm losing 100% battery life within 6 hours and there seems to be nothing I can do about it. I'm planning on doing a full wipe of the phone and trying a reinstall of the OS to see if this solves the issue - but that brings me to issue #2
Issue #2 - Phone is not connecting to PC via USB
I am trying to do a backup and obviously flash my phone once the backup is done with the stock ROM for my phone (I am running a stock ROM at the moment but a clean version rather than the one from my provider loaded with rubbish) - http://forum.xda-developers.com/showthread.php?t=1602579 - the phone will not connect to the PC via Kies USB, it is charging via the USB but Windows reports "Driver installation failed" when it attempts to install the USB drivers to use the phone in mass storage mode.
I have tried in debug mode (it's on right now) if anyone was going to ask that.
Currently running 4.0.3 Official
Download mode DOES work and drivers install fine (Odin gives yellow box)
I have tried uninstalling and reinstalling KIES
Going to see if I can connect it via Wifi now to try and get all my stuff off - even if it is slowly :/
Thank you everyone for any help - I am rather upset that my phone which has worked perfectly up until now has suddenly gained 2 major issues at once - one of which cancels out me sorting out the other :<
i had similar issue,
uninstall kies, install USB drivers ONLY... restart
try different usb cables, make sure MTP is enabled if ur using a custom rom, on resurrection before 1.5 you had to run a few commands in terminal, thats what made it work for me!
Thank you for the information - I'm uninstalling KIES now - how do I just install the USB driver without installing KIES? I just tried reinstalling KIES again and had the same problem. Windows just fails to find any drivers and reports a failure to install the device. Which makes no sense because Samsung drivers are installed - Windows seems to be insistent on looking on Windows update, in preconfigured folders and then giving it a big red cross
http://dl.dropbox.com/u/34590193/SAMSUNG_USB_Driver_for_Mobile_Phones.exe
Hope this helps.
Thank you for that - I'm about to try a full wipe and see if that does anything for me.
Also on your PC go to Computer/Properties/device manager. Connect your samsung phone via USB. uninstall the samsung driver.Unplug your usb then plug it back in.
reinstall the drivers.
I was having these issues on the official Rom so I flashed resurrection Remix v1.5 (ics 4.0.4) and problem solved... If you have charged only one cycle I recommend you try some more...
Sent from my GT-I9100 using Tapatalk 2
Sent from my GT-I9100 using Tapatalk 2
Doing the full wipe did seem to solve the Android OS bug - until I unplugged it from the charger this morning and after 13 minutes I'm sitting on 88% battery CPU Total is 33m 19s and Keep awake is 12m 25s so once again kernel wakelocks are keeping it from deep sleep and draining the hell out of the battery.
I have just uninstalled ANY app on the phone that says "Able to prevent phone from sleeping" that I can uninstall in the hope that it's something simple.
Going by the fact I just did a reboot and already Android OS is using 83% battery - I don't think so.
The strange thing is that for about 2 weeks ICS was working perfectly - then with no warning at all it started draining the hell out of the battery with kernel wakelocks and for the life of me I can't figure out why.
Maybe I'll downgrade to GB and see if it helps.
Did you solve issue 2 so that issue 1 can be resolved. If you did then from recovery do a full wlpe, ie data/factory reset, delvik cache, battery stats. Then format system in mounts & storage. Install original gb firmware from Odin.
Sent from my GT-I9100 using xda premium
Hi all - thank you for the help thus far. I have an update:
I have downgraded the phone to my carrier's official 2.3.6
Neither issue is solved, Odin will see the phone if I boot it in download mode but Windows will not see it at all. I did a backup of all my data over Kies Air though and have done several wipes which were needed in order to downgrade to 2.3.6
The phone is still draining within 3-4 hours from a 100% reported charge. If I plug the phone into USB on the computer it reports as Charging (AC) which I found odd - since it used to say Charging (USB). I'm wondering if the battery is not getting a full charge since it's not being charged at full voltage but thinks it is?
I now have a new issue I didn't have when I previously ran 2.3.6 - the screen turns itself on and if I try to turn it off by pressing the power button it freezes, reboots and then repeats the same again.
I have done about 15 wipes so far, I've used 6 different MicroUSB cables and reflashed 2.3.6 7 times already - at this point I'm really over it since the phone is just unusable and I'm assuming there MUST be a hardware fault somewhere so I'm thinking I'll have to send it in for service and be without it for at least 2 weeks.
I'm rather frustrated by this whole thing because none of it makes sense. I've been told by the service guys to reflash right back to the branded 2.3.3 that shipped with the phone to see if that solves the problem and if not, to send it in.
If anyone else has any idea what I can do to fix this please let me know - it would be very much appreciated so I don't have to be without it for a minimum of 2 weeks :<
Phone is currently sitting next to me charging off USB - I just pressed the power adapter since again the screen was stuck on and it shut itself off. It now has the usual picture of the battery on the screen with the white dots moving underneath.
Another update:
Just did yet another wipe and for some reason this time the CSC comes up instead of coming up as unknown, and initially Windows detected it when I plugged it in via USB - then promptly said the device was unplugged a second later.
Got it charging now, but so far haven't seen the screen turn on randomly so it could just be that the problem of battery usage is solved, by downgrading from ICS to GB
I still suspect the USB port may be faulty since it's still not working within Windows (it does say MTP Connected though) but it still says "Charging (AC)" in the Settings -> About menu.
You need to try another PC or laptop. Also have you tried downgrading to 2.3.3.
Do a full wipe. If downloading the 2.3.3 firmware from Samfirmware, download the flash program too. Then try putting the recomended .pit file into odin.
Sent from my GT-I9100P using Tapatalk 2
Edit: Scratch all that - I just downgraded completely to 100% stock original shipped 2.3.3 carrier branded bloatware firmware and it appears in Windows straight away without any issues. This is really quite annoying >_< but I guess I'm stuck on 2.3.3 for now since it works or risking the ICS upgrade to 4.0.3 again and just downgrading again if the poop hits the proverbial fan.
Thank you everyone for your help - I still suspect the USB port may be bad but at least it's working for now. Please feel free to close the thread mods.
Update: For those that are interested - I have now upgraded to ICS again and it's working perfectly. Which is really odd and makes no sense. But for those interested:
I was running 4.0.3 unbranded (OPS but with XEU CSC) XXLP8 - USB not working, battery draining in 4-5 hours, USB detects as AC for some reason
Downgraded to 2.3.6 Unbranded (XSA) - USB detecting on phone and saying connected, CSC coming up as unknown but format fixed this. Drivers not installing in Windows for Kies or MTP - suspected USB port
Downgraded to 2.3.3 Branded (OPS) - This was what shipped with my phone, USB started working with MTP, pops up in Windows no problem - CSC working
Upgraded to 4.0.3 unbranded (XSA) - Still working with MTP in Windows without issue. Battery drain seems to be solved as well but we'll see.
USB when plugged in is now detecting in settings -> about phone as Charging (USB) again as well.
I have no idea what the hell happened, I've done so many wipes the last few days and everything else it just all makes no sense (speaking of which I haven't done a wipe since I upgraded from 2.3.3 to 4.0.3... I should probably do that) and for whatever reason downgrading all the way back has solved it. Thank you again everyone for trying to help, I guess it's just one of those weird issues that noone can explain :/

Help Wifi Not turning on

i need a big help my android phone is acting strange ever since i turned off my phone and turned it back on my phone got broken i think because i can't connect to wifi when pressing the wifi button it says turning on but suddenly turned off again tried soft format and hard format but still no luck tried different methods like putting a sim card on my phone but still no luck need help my phone is Pantech Sky Vega IM-A710K v.2.3.4 Gingerbread but before the problem happened my phone is working very well even without a sim card on it i can still use my phone's wifi need help any solution??? and i think my hard format is not 100% success because it says /system failed????

[Q] my rom crashed while updating manually

hi guys!
yesterday i was updating my firmware or my smart phone INNJOO i1s, from its official site. i had started flashing it with FLASH TOOL it first format the rom then when i was to installed the rom there was error occurred then boomm... Rom crashed then i reboot my device and it was not starting. it was like a dead. its not charging now nor turning on. but when i connect it to computer, computer makes a connectivity sound, and installing and unknown device driver. Why it is happening? plz help me. I want to turn my phone again.

[HELP] Samsung Galaxy V No sim problem after reboot.

HI i'm Ivan Jurel San Jose (Newbie)
I had this problem about my sim card it wont read it and it says on the nontifications "NO SIM"
It Happened two days ago when i was playing games on Laptop i turn the Tethering or Portable Hotspot on my phone to connect and i turn off my phone when i finished using the internet i turn on my phone the screen wont on so i reboot after rebooting it says on my phone's Nontfication "NO Sim".
I searched in the internet nothing solved its about the software if the software wont working properly then the hardware wont
So please give me something to solved this problem
I've done many things to this phone it was very special to me and i rooted it by Kingoroot(Why is it easy on this its not challenging its recommended root for samsung phones)

please help

so after I've installed a crdroid update, my phone kept on turning off completely just by switching it off or not using it for a while, and sometimes it reboots, but when I use my charging cable it turns on. I've tried to change the rom and it didn't work, I ve even clean flashed my phone and installed a rom without gapps and it didnt work. and my phone cant connect to my laptop, so ive been using micro sd card. So please help, every info will be appreciated.

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