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I have a rooted i777 with SHOstock rom, I haven't updated the rom for a few months so I'm not sure which version it is.
The phone was working yesterday and it suddenly got stuck so I tried to reboot it (had to take out the battery because the power button didn't respond) but now each time I try to turn it on it is stuck on a black screen with the logo "Samsung Galaxy SII" and won't progress.
I tried to boot to recovery but it shows a screen saying "CWM-based Recovery v6.0.2.7" but it doesn't go pass the screen to show the recovery menu (it just reboots after being stuck on this screen for about a minute).
I tried to boot to download mode and succeeded, but every time I connect the device to my pc, the pc doesn't recognize it
(I tried re-installing kies, but it didn't help and probably the problem is not with the pc drivers because if I connect my wife's unrooted i777 to the pc it does recognize it).
so now I don't have clue what else to try.
any advice will be appreciated.
Make sure you have Odin v1.85 on your Windows PC. Look in the Windows Add/Remove programs dialog (or Uninstall a Program dialog) to see if you have SAMSUNG USB driver for mobile phones.
Open Odin on the desktop. Next put the phone into download mode by holding down vol + and vol - while plugging in the USB cable.
If Odin recognizes your phone, flash back to stock. I would recommend UCMD8 stock firmware, which you can get from the Download Repository.
don't know what happened to it but now it doesn't even turn on.
it's stopped turning on before I had a chance to try what you suggested.
now even if I connect it to the charger it doesn't show the charging status.
is there any other "force something" I can try?
kokoman said:
is there any other "force something" I can try?
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Click to collapse
Remove the battery and leave it out. Connect the USB cable to your PC. While holding down the vol- button (also try it with both vol- and vol+) but not the power button, plug the USB cable into the phone. The computer will provide the power. If this works, your phone will go into download mode. If not... you have very likely had some kind of hardware failure.
unfortunately it didn't work.
can't get it to download mode.
I'll try to leave the battery out for a longer time and try again.
should I try ordering a JTAG usb and see if it puts it in download mode or
probably my only option is to send it to mobiletechvideos?
I had the same problem, Your battery got too low. Pull your battery and leave it out for a while 15 mins or so. Put the battery back in and connect charger. Let the battery charge for a while without trying to turn on phone. The phone will not turn on with a dead battery even if it is connected to charger.
I just solved a problem that I didn't find any help with, so I thought I would post it here in case somebody else needs help out of this situation, and this is a recent and related thread.
After I pulled the battery of my i777 to test in another phone, without remembering to power my phone off first, it would only hang at the Samsung boot logo (stock UCMD8 ROM, rooted, stock recovery). Normally the Samsung boot screen shows for only about five seconds. Pulling the battery wouldn't get it to boot right. Holding Power to force a reboot didn't solve it. After clearing the cache it would move to the AT&T Rethink Possible screen once, then reboot and then again get hung on the Samsung logo screen. Also my battery was heating up a lot as it was hung.
I could get into both download mode and recovery. I tried reflashing my ROM from the stock file in ODIN since that would save all of my data IF it worked. This still didn't get it to boot past the first logo. Finally doing a factory reset on stock recovery is what solved my problem. I had to re-add my account and reload apps from scratch, etc.
So I have had the phone for a while and have been running Task's AOKP ROM with minimal hiccups.
I had the phone charging and when I unplugged it it would not turn on.
After pulling the battery and rebooting, I noticed that the stock AOKP boot image appeared (as opposed to my custom one) and the phone got stuck in a boot loop. Booting in to CWM I could see that something had gone wrong as it kept popping up about a recovery log file not being found.
When I tried to reboot the phone it did not do so, even after charging. No sign of life at all. Buying a new battery didn't help - it still shows no signs of life at all.
Anyone any ideas? Anything I can try? I'm willing to flash back to stock if that's what it takes but I can't even get it to power on in to CWM to do so.
Would the USB JIG help?
The jig might help. If you have one on hand try that first. Otherwise, try to boot into download mode with the battery out. Do the following:
Pull the battery and leave it out.
Open Odin3 (v1.85 recommended) on the desktop.
Have USB cable plugged in to appropriate port on computer but not connected to the phone.
Hold the vol down button (or holding both volume buttons is okay) but not the power button and plug the usb cable in to the usb port on the phone. The computer will supply the power.
If you get download mode, and Odin recognizes the phone, flash the full stock package from the Download Repository. UCMD8 is the latest stock.
creepyncrawly said:
The jig might help. If you have one on hand try that first. Otherwise, try to boot into download mode with the battery out. Do the following:
Pull the battery and leave it out.
Open Odin3 (v1.85 recommended) on the desktop.
Have USB cable plugged in to appropriate port on computer but not connected to the phone.
Hold the vol down button (or holding both volume buttons is okay) but not the power button and plug the USB cable in to the USB port on the phone. The computer will supply the power.
If you get download mode, and Odin recognizes the phone, flash the full stock package from the Download Repository. UCMD8 is the latest stock.
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Click to collapse
So I tried your suggestion but plugging the phone in with the battery out does nothing. No sign of life. Do I need to have specific drivers installed?
I have the most recent SAMSUNG drivers for the S2 found here on XDA and have ODIN 1.85 installed but the phone just remains blank and nothing happens. Any other options/thoughts? I it perhaps the USB charging port? Or is it fully bricked? Any way to check?
EDIT: With the phone plugged in and the battery either out or in, the top of the phone does become warmer so it seems like the USB port IS working perhaps? This is very frustrating...
I'm far from experienced with this sort of failure. I can only make suggestions based on my collected knowledge from reading the forum every day, and my understanding of trouble shooting principles. So don't take anything I say as definitive.
Generally, if the phone shows no sign of life, that is the definition of a brick. If it shows no sign of life except getting warm when plugged in, that is a different symptom than "no sign of life."
Do you have a jig, and have you tried inserting the jig with a charged battery in the phone? That would be the third troubleshooting step to see if the phone can enter download mode. 1) standard method to enter download mode with a charged battery. 2) attempt download mode with the battery out 3) attempt download mode using a usb jig with a charged battery.
As far as the usb port, were you aware of any problem with it before this issue came up? As far as I can remember from what people have said in the forum, they know that they have a usb port issue because of wonky behavior, before complete port failure. Also, most people report that their phone still boots when they have usb port failure.
I always hate to suggest spending money, but if you are unable to get into download mode through any method, then I can't think of anything else to do but send it off for repair.
I just resurrected my S2 two days ago when I bought my laptop. Used a jig I made from a YouTube video and all went well other than some slight USB issues like the phone thinks its plugged in sometimes.
Sent from my ATT S4 MF3 using Tapatalk
Bricked phone
I was using CyanDelta for over months without any problem. Today (1 December 2013), I downloaded an update of about 21 MB of Cyanogenmod Nightly 10.2 for Samsung Galaxy S2 SGH I777. While trying to install it, the phone booted into recovery and installed it. However, during the process of Upgrading, i.e. when the screen says “Android is Upgrading”, “Optimizing App”, the phone got stuck at “Optimizing app 271 of 313”. I waited for about 30 minutes before I manually switched off the phone using the power button. Then I restarted the phone and saw a new boot logo of cyanogenmod; but it got into boot loop. Then I booted into recovery and manually installed the new zip (of 1 December 2013) found in CyanDelta folder. Still the phone could not boot. Now I saw “Samsung” logo only once and then the phone completely turned off. Now I could not turn my phone on, nor could I boot into recovery or download mode. Also I fully charged the battery before flashing the new Zip.
I tried all other steps to boot my phone like removing the battery and pressing power button for a minute, plugging the usb cable into PC and pressing the volume down button and also all sorts of other key combinations. Nothing could boot the phone. Please help. Is my phone completely bricked or is there any issue with my battery ?
Phone : Samsung Galaxy S2 SGH I777 (AT&T)
ROM : Cyanogenmod Nightly 10.2
Battery Condition : Poor (But it was fully charged and also charger was plugged in while flashing the Zip)
Email : [email protected]
... and this is the 3rd time you've posted this. Please wait for your answer in the thread you created, or try the steps creepy has laid out. I guarantee you've not tried everything.
SteveMurphy said:
... and this is the 3rd time you've posted this. Please wait for your answer in the thread you created, or try the steps creepy has laid out. I guarantee you've not tried everything.
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Click to collapse
Sorry for the same post being posted thrice. And I have already tried all the methods except for the USB Jig method. I may think of buying usb jig, but is there any specific usb jig available for S2 sgh i777 ? And my phone usually gets warmed up when I put in my battery, but could not do anything with the phone.
Hi! This morning when i woke up my phone (s3 i9300) was working ok, then i've rebooted it and had shown random pixel colours while shutting down, at this point i've disconnected the battery, reconnected and from that is completely dead...
No boot with volume up/down+home+power.
I get 2.8ma of consumption when i connect the battery, then after few moments goes to near 0.5ma, when i press the power button goes to 280ma, when i release it i get back the 0.5ma. When i connect the battery i have around 2.10v between the contacts of the power button (3.95 reference to ground)
What i can check to try to find the cause? I have an hot air reworking station, cap meter, etc, but i not have enough phone electronics background knowledge (i not repair phones for job, only some minor electronic repairs sometime). I've seen videos about problematic caps, power ic and emmc, but i not know the "debug" steps to find the defective part....
I have full backup of anything, i know that it's an old phone, now it's quite slow, but was doing it's job....
Any help is really appreciated! Really thanks!
I'm trying to unbrick it using the SD card (found some instructions on the net), but i can't get it to boot constantly from the sd (also without the jumper on the resistor). Sometimes it boot (and give the SDCARD download failed - due to the missing jumper on resistor) but most of the times don't do nothing (tried different "press times" on the power button). One time that i can get it booting constantly from sd, i try to short the resistor... I'm trying with external power source (usb cable) or battery, also with both of them, but as said the device not goes always in the download screen...
If you can get download mode you need to flash the latest official firmware via odin on a PC.
For the sdcard method to work the file must be on internal sd, not external sd.
Beamed in by telepathy
I'm following the instructions found on the samsung release note (and also some posts here), but instead of creating the sdcard from a working s3, i've writed the "ready to use" image (written with image write). It works as it goes into the sdcard download screen, but only one time over a lot of tries. At this point i not think anymore that is only a software problem (emmc corrupted), but also an hardware problem. And also if it's an emmc failing, i not understand why not goes on the sdcard download screen every time, so i suspect that is something about the power circuit... I'll try to replace the power ic and check the capacitors around it....
my z5 Compact is taking forever to charge and even after I leave it in for hours, it still says it needs to be charged. When I unplug the phone from the charger and try to turn it on, I get 3 red lights. Holding volume up and turning it on only gives me 3 vibrations. Before this happened, I used the phone all the way till the battery shut down. After that, I can't get it to charge any more.
Sounds like you over-discharged the battery. You should always avoid using the phone to the point where it force shutdowns due to 0% remaining battery.
Try hard shutdown by pushing and holding the yellow OFF button in the flap for 10 seconds, then charge the phone for about an hour and try turning it on.
If that doesn't work, press and hold ALL physical buttons simultaneously (VOL UP, VOL DOWN, POWER, CAMERA) AND press and hold the yellow button for 10 seconds.
The phone should vibrate or something, I forgot, then charge the phone for about an hour and try turning it on.
Volume up + Power for hard shutdown.
Can you get into flash mode or fastboot mode?
Plugging the phone into your computer and entering fastboot mode helped me once:
So you disconnect your phone, do a hard shutdown to make sure it is off. Press and hold vol up and connect it to your computer. If a blue light shows up, at least the basic circuits and bootloader are ok
Keep your phone connected for 30 minutes and you should (well, might) have some charge again.
If you can get into fastboot or flash mode but still can't boot up, try reflashing your phone (if possible), esp. your boot partition.
try charge with QC2.0, adapter will charge device on 9v, its standar QC2.0, when your phone drain of battery until shut down, down turn it on. Your phone must connect to charger and wait untill 2%-4% of battery before turn on.
if charger fail, change your battery, dont force charge before IC power broken (dead)
Running on an imported 5823
IGNNE said:
Volume up + Power for hard shutdown.
Can you get into flash mode or fastboot mode?
Plugging the phone into your computer and entering fastboot mode helped me once:
So you disconnect your phone, do a hard shutdown to make sure it is off. Press and hold vol up and connect it to your computer. If a blue light shows up, at least the basic circuits and bootloader are ok
Keep your phone connected for 30 minutes and you should (well, might) have some charge again.
If you can get into fastboot or flash mode but still can't boot up, try reflashing your phone (if possible), esp. your boot partition.
Click to expand...
Click to collapse
I am running on a 5823 imported from the UK (i think). Is it safe to flash boot.img prescribed for the 5803.
Also, where can I find a collection of boot.img for the 5823? I am not really sure I am doing this right.
Re-writing boot in fastboot mode will only work if your device is unlocked, and although unlocking should happen in the bootloader it is not something I would risk with an already bricked phone. Maybe as a last resort thing.
But IIRC just keeping the phone connected to your PC in fastboot or flash mode somehow bypasses some of the charging logic*, so just leaving your phone to idle might give you some basic battery charge to start with.
If you can enter those modes: You can re-flash your phone with stock firmware using the proprietary flash mode (Vol-Down when connecting to PC, green led should show up). Search for 'Xperia Flashtool' and/or 'XperiFirm', there should be lots of information, these tools help you download Sony firmware, too. I would not flash an image for a different phone type, I guess there is a reason why they made 2 firmwares
If you still only want to flash boot.img (= only the 'boot' partition on the flash as a raw image), you'll need an unlocked bootloader first. Also, if you already have an unlocked bootloader, you probably have installed a custom ROM (why else do you unlock your bl?). To avoid any more confusing error sources, I recommend flashing exactly the boot.img via fastboot that came with your custom ROM and that worked until now.
*Most likely bc there is no kernel to optimize (read: mess up) charging. I once had a Z5C with more-or-less blown charging 'stuff' and I was able to charge it in fastboot mode as a workaround.
Three red blinks is, afaik, a status message for a dead battery. It has been discharged below safety limits, and is no longer safe to charge.
Hello,
New to the forum and all of this, so please go easy on me.
I have a Samsung Galaxy S9+ (SM-G960F).
On Thursday evening, I went to the device and it was completely dead. It wouldn't turn on and I attempted to do power key/volume down and various other button combinations I found online that would normally boot the device. Obviously, I attempted to charge the phone, but the charging light did not come on yet the phone did warm up slightly as if it was charging. After leaving it plugged in for so long, a 'Downloading... Do Not Turn Target Off' screen appeared. It also states I can restart the phone by holding volume down/power button for seven seconds. However, when I do this the phone just goes dead and doesn't boot up. After plugging in the charger again trying various buttons, I eventually end up back at the same download screen.
I've read about recovery mode, safe mode etc but I am unable to access them using the instructions I've read.
Any help would be appreciated. Ideally I'd like to be able to access my photos/videos/messages on the device and be able to use it again.
Jamfocus said:
Hello,
New to the forum and all of this, so please go easy on me.
I have a Samsung Galaxy S9+ (SM-G960F).
On Thursday evening, I went to the device and it was completely dead. It wouldn't turn on and I attempted to do power key/volume down and various other button combinations I found online that would normally boot the device. Obviously, I attempted to charge the phone, but the charging light did not come on yet the phone did warm up slightly as if it was charging. After leaving it plugged in for so long, a 'Downloading... Do Not Turn Target Off' screen appeared. It also states I can restart the phone by holding volume down/power button for seven seconds. However, when I do this the phone just goes dead and doesn't boot up. After plugging in the charger again trying various buttons, I eventually end up back at the same download screen.
I've read about recovery mode, safe mode etc but I am unable to access them using the instructions I've read.
Any help would be appreciated. Ideally I'd like to be able to access my photos/videos/messages on the device and be able to use it again.
Click to expand...
Click to collapse
-Download odin
-Download firmware for your phone
-unrar firmware file
-open odin
-flash AP , BL , CP , HOME_CSC (HOME_CSC goes on USERDATA) if you haven t formated your phone by mistake your files will be there and your phone working.