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[Q] CM 7 Boot loop/Blank screen

Hi All,
Disclaimer: I have scoured the internet and this forum looking for others who found solutions to my problem, and I've found several similar cases, but none quite like mine. I've done all I can think of short of sacrificing lambs on giant LG logos painted on the ground, so I'm resorting to posting. Forgive me if I missed something obvious - it's entirely possible since I'm still a newbie...
With that said, here's my issue:
I downloaded a CM7 nightly build and successfully flashed it on my p999 this morning using ROM manager. I went back to stock 2.2.2 afterward. Earlier this evening, I decided to flash CM7 again from the ClockWork recovery mode, but this time I didn't do a wipe (yes, I realize I'm a massive idiot). After rebooting, I got stuck in the standard boot loop with the cyan android alien doing its skateboard thing. I tried booting to recovery mode, but holding down power+down volume just brought up the android alien and the white box with a loading bar for a short time before rebooting. Standard suggestions involved (reasonably so) performing a hard reset. Though the phone won't boot straight into recovery mode, pressing the home button while the loading bar is visible brings up text suggesting the data, cache, etc of the phone are being formatted. After this process completes, I'm left at the system recovery utility with blue text and I can navigate the first menu, but the power button (nor any of the others for that matter) doesn't actually select any of the options. After removing the battery to reboot the phone, it still gets stuck in the boot loop and occasionally goes blank after failing to get to the launcher a few times.
I've also tried using the adb approach, but no device is detected on the linux machine despite being able to access some form of the bootloader.
Have I legitimately bricked my phone, or is there still something I haven't tried? Thanks a million for any help.

You didn't search very long did you? Go to the development section and find the thread on the one click nvflash tool, read the OP in that thread and you should be good to go.
G2X CM7

unusualparadigm said:
Disclaimer: I have scoured the internet and this forum looking for others who found solutions to my problem, and I've found several similar cases, but none quite like mine.
Click to expand...
Click to collapse
This forum is saturated with problems and cases exactly like yours, almost word for word.
G2X CM7

I found plenty involving a boot loop with CM7, but all of them were able to get to recovery mode just fine. Despite what you might think, I spent several hours trying to find something that worked. Thanks for the help. I'll see if nvflash helps.

They were able to get into recovery mode because they flashed it correctly using nvflash. Pardon my tone. I guess it sounds rude. Its been a long day and I'm tired. Anyway, nvflash recovery and you'll have no issues getting stuck like this.
G2X CM7

No problem. =) When trying to go the adb route, I saw the volume up+down trick to get the device to be detected, but it wasn't working on the linux or mac (lion - it's been having issues detects various external devices anyway) machines that I was using. After checking out the nvflash thread, it seems maybe a windows machine is necessary. Getting bootcamp going. Here's to hoping it'll work. Thanks a ton again for the suggestion - this is exactly what I was looking for (wanted a way to get CWM on the phone).

Make sure to check out this thread if you haven't already. Its a one click tool for nvflash.
http://forum.xda-developers.com/showthread.php?t=1056847
G2X CM7

Yay!
Thanks a ton! In retrospect, it seems my problem was right along the lines of multiple others', but I just didn't realize it since a few details on the specifics here and there seemed different. Sorry for wasting the board space, but thanks for your patience and help. I can't emphasize how much I appreciate it.

[Q] Galaxy Nexus Boot Loop (stock)

I have an unlocked HSPA+ Galaxy Nexus imported from the UK to the US. Ordered from Negri Electronics.
It's not rooted or modded in any way.. Mainly because I don't know how to. As far as I know, it's running stock ICS.
I was using it normally, (using the fb messenger app if it makes any difference) when it suddenly rebooted by itself. The Google logo comes up, then the start up animation, and sometimes the home screen will appear but is not touch sensitive (i cannot slide it to unlock), and then it 'hangs' and the screen goes black. Repeat.
I've tried to fix this by myself and there's a video on youtube (sorry, noob here. can't post links. video is by robbidwv and title is "my galaxy nexus won't boot..") of the same problem that I have, but the posted solution doesn't work for me.
So far, I have entered Coin Mode and pressed Start. Entered Fastboot mode and gone into Recovery Mode (no options appear after that. it just starts booting up and the loop begins), and I've also tried Restart Bootloader.
I've almost given up. Now all I want is to extract my SMS, if they're still on my phone. I can't access the folders on my computer because it won't boot up and connect. Is there a way that I can extract my SMS by using DOS in either Coin Mode or Fastboot mode?
Or even better, does anyone have a solution to this boot loop problem? I'll contact Negri Electronics tomorrow and hopefully they can send me a replacement.
Please help!! Thanks

that problem just started happening with me an hour ago!!
i hate this!!
we need a solution please!

Hey guys, sorry about the issue.the major problem I see here is you wanting to retrieve your txt messages, which might be possible with a little Modding, but if yourwilling to lose them to get a working phone back, then this is what your going to have to do. Make sure your phone is completely off. Hold the 2 volume buttons and the power button together. You will get into a mode with an android Guy. Press the volume button up or down until it says reboot recovery at the top. Press the power button. It will rebootand come to a screen with an android. Hold volume up,down and power at the same time. A menu will come up. Go down to wipe data. Click it, and after it is done reboot. Your phone should work now.
If this helped you, or you simply appreciate me taking the time to write this out then please press the thanks button

Hey!
Thanks. Yeah I 'fixed' it already. I was just about to post something similar. After a while I just gave up on trying to recover my data. Good thing that Google syncs everything so the only issue would be recovering my messages, which I decided weren't worth sending it in for a repair which would probably not be able to recover anything anyway.
The thing I didn't know about was to press power + volume up WHILE on the recovery screen. I thought navigating to the recovery screen was it!
Still, this kind of sucks. I love my GNex, but I can't help but be slightly pissed seeing that my crappy iPhone 3GS never did this in the 2 years I had it. Oh well, hope it doesn't happen again!

hey guys! i also did a complete wipe on my phone and got it working again!
but i wonder why this happened in the first place?
last application i installed before the crash was double twist, i dunno why but i feel that it was the reason behind the boot loop!

Sorry for reviving this thread, but I just had this happen to me TWICE!
It happened to me first last Monday, the 23rd - the phone crashed when trying to send an email with an attachment - and went into a boot loop - Google logo would appear, no make it to the animation, and reboot....
I performed a full reset and things worked again. I didn't install all the apps I had before - figuring it must have been due to some app messing with the OS.
Well, it happened again to me yesterday! I was connecting to my bluetooth headset when the phone crashed and went into the boot loop. Full reset worked again, and I've installed even fewer apps - essentially only those that I use on a daily basis.
My phone is still on 4.0.1 and I'm hoping once 4.0.4 is pushed this may get resolved? I have a canadian GNex from Negri. I will call them again (I called the first time, but when the full reset worked I never contacted them again).
I would like to this this is a software issues, and not hardware.

I have the same problem. If you figure it out let me know.

Today my phone also entered a boot loop: [Google logo]->[black screen]->[vibration]->[Repeat]
I tried Recovery Mode, but this is what happens: (sorry for the link but I am not trusted with powerful tools such as outside links apparently, as I have not yet reached the maturity of a person with eight posts... )
dl(dot)dropbox(dot)com/u/53568097/Android.jpg
This is what I see when I navigate to Recovery Mode
For a split second I can see an image of an Android with spinning cogs in his innards, but then this little sad fellow appears. WTF is this?
EDIT:
Oh, and I'm running Android stock 4.0.2, never rooted or unlocked, Swedish. At the time when the phone started doing this, I was using Endomondo, and was about to set off on my bike when it died on me.

Stock ROM galaxy nexus bootlooping after wiping data also.
Hi,
My GNex went into a bootloop so i searched xda and found that factory reseting would be helping my prob. But after wiping the data also its still in going through the loop . Please help .:crying:

Bricked, no boot, no recovery, but vibrates every 37 seconds

Hello XDA friends. This is my first official posting on the XDA site and I'm in need of serious help.
I've noticed that intense research and development has been put into this phone. With so many rom selections available for the MT4GS I decided to try out several different roms kind of playing around. Many of the roms available were very well put together.
I decided to try out the Doubleshot MIUI v0.3 as I have used on other devices in the past and liked its customization. After installing the rom I made some adjustments in the settings to personalize my phone. Everything was working fine until I rebooted my phone and now it is hard-bricked. My device is S-Off with bootloader unlocked, and prior to installing MIUI I formatted all data, Dalvik, and system. I don't know what I did to brick my device and I can't find similar issues among others.
Issue Details:
When I have the phone powered off then hit the power button my backlight will slightly light up (very dim with no splash or image), and it will vibrate (Like on a normal boot). What else is crazy is every 37 seconds it will vibrate, and this is ongoing if I let the phone sit in that state.
If I have the phone off and plug it in a power source I get no love.
I'm unable to access HBOOT or Recovery mode, and the phone is not detected when connected to PC.
Please help me.......

that looks like a screen/digitizer problem. I don't think you're even bricked seeing as you didn't mess with any partitions according to what you did above. Also if the phone vibrates and the backlight turns on then it's still alive.

Thanks for the response. I'm sure the screen is fine. I performed the reboot when the issue first happened. This phone is driving me crazy.

wait u said you phone isn't connecting to adb right?
Did you try Fastboot?

I'm not able to bring up the HBOOT menu to enter fastboot mode.

have you tried a battery pull?

Thanks for the reply. I have tried pulling/replacing the battery and didn't have any luck. I also have two spares and the issue continues........
I can't figure it out, or figure what I did exactly to cause this.

Any other ideas?

does adb recognize it when it is plugged in?

[Q] AT&T LG G2 All files erased, Twrp wont mount, please help

So heres the story....wife has had lg g2 since it came out with 0 issues. About 3 days ago the phone starts doing some crazy ****, flipping through screens by itself, opening and closing apps, deleting things, rebooting, changing system settings. This was after earlier in the day she had downloaded some random games for my son to play (not sure if this was the cause/is at all relevant, just trying to be as detailed as possible).
My first though was that one of the games may have had some virus/malware **** going on, so did a factory reset. The reset was successful, however the issues continued. Next though was to root/unlock/install custom rom. (I have done this to all my phones, with minimal issues, so i felt fairly confident in doing so) So i rooted, installed twrp 2.7.0.0, and flashed this rom - ATT-stock-rooted-D80020K.zip - and all seemed well. Phone booted and behaved normally for the rest of the day (12 hours or so). Plugged in charger, went to sleep.
Next morning, wake up, grab phone, and its showing the LG logo (like when you first power it on). Restart (power button long press) and it boots into TWRP, and i go looking for the rom file to reflash, and its gone. All files are gone. In the file explorer in TWRP, i can see the files,(data, system, boot, and so on) but when i click on them there in nothing in any folder. All downloads gone. Everything.
But i can still get into TWRP, so i thought ok, ill just plug into pc, mount the phone, copy appropriate files, reflash rom, and all will be good. WRONG. I cannot get TWRP to mount the phone, and at this point ive got a pretty expensive paperweight.
All my unlock/flash/root experience has been on HTC devices up to this point, and i have never had an issue like this.
If anybody can advise what to do next, Im listening. Ive exhausted my knowledge on the subject at this point and NEED HELP PLEASE.
Thanks in advance.

Samsung J7 Prime (2017) SM-G610Y Boot Looping Problem

Good day, this would be a pretty lengthy post. I'd like to describe my experience clearly since I don't know what I possibly skipped over as I am very positive that my efforts have been correct basing on prior XDA forums. I even made this account solely for posting this to ask for help formally along with archiving this problem I'm having for those having a similar experience.
I've been working on my mom's phone this whole day and there are fruits of my current hard work. I am immensely stressed and despairing with my situation.
The Problems
Infinite boot looping
Can't access the recovery menu (power, volume+, even with home button)
Can access the ODIN / Download menu
Can't turn off either (holding down power button has no effect)
What I've done so far
I read XDA forums about similar experiences. Can't really access the recovery menu so I've factory reset.
We live in the Philippines and this phone is open line, so I went with those requirements while searching stock ROMs.
I downloaded the stock ROMs of the phone model via galaxyfirmware.com which was positively shared in the forums.
Did trial and error with it and eventually got the right one. I have formed a level of understanding with the filenames and eventually knew which is compatible.
Used Odin3 to Flash the BL, AP, CP, CSC, and even go Nand Erase and got the PIT file inside the CSC (Opened it using winrar)
The flashing is actually successful and quite fast to be honest.
The phone reboots itself and shows that it is still sadly boot looping.
Also, despite the several files used for the Flash, still can't access the Recovery Menu.
With that said, I have also tried using Frija which automatically downloaded the stock ROMs based on the model name and CSC type. Placed it in ODIN again and no changes, still boot looping.
I also can't put the TWRP I got here because of the FRP Lock, which can be undone via the settings of the phone. But since it's boot looping, I can't really do much about installing a custom ROM.
Currently, my dad is letting the phone drain its battery, since we can't really turn it off. The phone model doesn't have easily detachable battery as well, unlike the old days.
For some additional notes of what happened prior to this incident
My mom was just playing with her phone as her usual days went on. That day, she installed a new hotel-themed game she saw on Google Play. As I assume that it's from the app itself and not on some shady apk website, I saw no problem with it and didn't think it was the cause of all this. I went with the theory anyway and with the flashing, using CSC instead of HOME_CSC (which apparently saves the existing data on the phone from wiping), and even used the Nand Erase in the end. It's still stuck at boot looping.
I would appreciate anyone's reply to this discussion. I am truly desperate to fix this for my mom. If worse comes to it, I'll save money to buy her a brand-new phone.

You don't have a working android, so you won't remove the RFP. TWRP will not help you with this.
The symptoms you describe indicate a defective power button.
You manage to enter download mode because the power button is constantly on.
Because of the constantly on power button, you have no way to turn off the phone. Bootloop can also be the result of a constantly on power button.
To sum up, you should fix the power button.
1. The easiest way is to blow with compressed air and press the edge of the button with your fingernail, rapidly releasing the pressure. Perhaps the fuzz has blocked the button. Unfortunately, this rarely works.
2. Take the phone to a local service center.

Hi ze7zez! Me and my dad greatly appreciates your insight and we were definitely enlightened on this angle.
We didn't really think that the power button was stucked pressed on because you can clicking sounds when you press on it. The phone never had problems with the buttons along the 6 years it accompanied us, perhaps its age does start to show.
We're going to look into it tomorrow. Thank you very much! You gave us the idea that it may be shorted inside or some sort. Thank you again!

A bit of update.
I pried open only the back case of the phone so I can see and clean up the power button. I used tools specifically for it and made no damage on the phone during the process.
We couldn't really see anything busted from there. The buttons on the circuit still do the neat clicking sounds on it. Battery still looks the same.
Testing out the theory that the power button was stuck on:
We tried to only press and hold the volume down and power button. It didn't go to the download menu. We needed to press down all three together to access it. It is confusing since we believe it would be a power button issue too, as the phone instantly turns on by itself when plugged to a power source (it's completely drained by now and we still can't turn it off manually)
Perhaps it's an internal circuit problem with the power button? It's confusing with the fact we still have to press on it to access the ODIN menu if it was like "on" the entire time it's looping.
Thank you in advance for further insights.

Try restarting by pressing home, power and volume up all at once.

Hi Pranav2406,
I have tried that as well in order to access the Recovery menu to factory reset, but no luck.
We have given up on repairing the phone and went out yesterday to buy a new one in a rush.
We will still send this broken phone to a repairman.
If he fixes it, I'd ask what he did on it so I can post an update on this problem as well.
It's better to let the expert troubleshoot it.
I do suspect the problem in the phone's hardware. I'm pretty confident with all the stock ROM flashing I've done so it's not a software problem.
Thank again for everyone's insights.
Perhaps this case is too much for an amateur to fix.