[Q][GT-i9020a] How do I reflash back to factory? - Nexus S Q&A, Help & Troubleshooting

Hi, new Android user here.
I was trying to root my Nexus S phone yesterday and I'm having problems. There is a lot of rooting guides out there and I used one from xda and also one from unlockr.com. Managed to root the phone ok (I think), but everytime I flash a custom ROM, the phone won't start at all, it just sits at the boot up screen and repeats itself.
So I'm thinking, I should just start over again. So I flash the stock ROM from xda back to 2.3.1. Everything seems ok, the phone starts up... but it's always stuck on airplane mode and the phone itself doesn't even show stuff like IMEI, mac address anymore.
So now I figure I've probably messed the phone up enough and need help lol. How do I go about reflashing the stock ROM and getting my Nexus back to out of the box condition (Stock ROM and no custom bootloader)?? Any guides or step by step instructions would be very helpful.
Thanks

Did you wipe before flashing roms?
Sent from my Nexus S c",)

Maybe flashing the KB2 modem would help that but the 9020a came stock with 2.3.3 and not 2.3.1 so that could be it...I'm not sure but that software wasn't meant at all for ours so it could be part of the problem. But if I was you I'd take a look at this thread wich has all the stock software for your phone. Make sure you wipe everything in clockework and then flash the stock rom. http://forum.xda-developers.com/showpost.php?p=13123996&postcount=39
dsixda uploaded the stock backup and the stock recovery, you can read more at that link, good luck hope it helps

You can download the full stock ROM from the link below:
http://goo.gl/8P8vl
Move the zip file to sdcard. Boot into recovery and flash the ROM. It should get you back to stock 2.3.4 ROM, all locked.

jungbum said:
You can download the full stock ROM from the link below:
Move the zip file to sdcard. Boot into recovery and flash the ROM. It should get you back to stock 2.3.4 ROM, all locked.
Click to expand...
Click to collapse
that did the trick. thanks everyone, now time to try rooting and flashing ROM again!
hrm lol now trying to update it to 2.3.4, it downloaded the update, but on reboot i get the white triangle with ! in it :\
this phone is so messed now
edit: well now everything is ok again, wiped data, flashed with CM7 and now it says 2.3.4, go figure.

Related

Samsung vibrant help needed.

I flashed back to stock 2.1 on my samsung vibrant.
the phone boots up fine at first, then all of a sudden i get a wierd screen and the phone reboots automatically. i dont know what the problem is. can anyone please help me with this problem.
the phone is continuously rebooting for the past half and hour. and i have no idea what to do now.
PLEASE HELP ME WITH THIS.
im posting a photo of the "wierd" screen below. the quality is crappy, but i cant help it.
Were you coming from a GB rom? Be sure your not mixing bootloaders...Not sure what that is but if you flash just the stock kernel in ODIN, with the phone off (pull the battery)and using the button combo try and get into DOWNLOAD mode. you might recover it....or flash the Bali kernel and then try going back to stock again.
erad1 said:
Were you coming from a GB rom? Be sure your not mixing bootloaders...Not sure what that is but if you flash just the stock kernel in ODIN, with the phone off (pull the battery)and using the button combo try and get into DOWNLOAD mode. you might recover it....or flash the Bali kernel and then try going back to stock again.
Click to expand...
Click to collapse
yes i did try flashing a 2.3 ROM,but it didnt work properly, so i tried flashing the stock 2.1 again using ODIN...it got installed, but later all these things started happening.
i even flashed the 512 PIT file that came along with the stock 2.1, but still no use.
can u please post the link to the kernel you are talking about and also how should i flash the kernel?
thanks for your reply.
hey the problem is solved. i installed eugene's 2.2 leaked build and my phone is back to normal now...!!!!
thanks for all your help. i really appreciate it...!!!
Glad to hear you got it...just be careful to know which bootloaders you are on, GB or FROYO... unless you have alot of problems with a ROM its not really necessary to ever flash back to stock...I flash rom to rom without any issue as long as you:
1. wipe cache partition,
2. then wipe dalvik cache and then
3. factory reset all from CWM...
4.then flash whatever .zip ROM you like.
Flashing back to stock FROYO/ECLAIR from GB with an odin rom you must be sure the stock rom either includes both PBL and SBL or no bootloaders at all and then your good.

[Q] ¿Help getting back to stock rom?

Hello guys
First of all, I'm new in here, so I don't know much stuff.
I recently got my transformer and wanted to check out the Android Revolution HD rom. Before flashing it, I made a backup using CWM.
I tried the rom (before installing it, yes, I did the superwipe thing) but didn't like it because the gps issues. I wanted to go back to stock and did again a superwipe and then made a restore from the backup.
When I rebooted my tablet, the configuration screen came up and started freezing and rebooting. I tried re-flashing the backup but it kept going on with the crashing and rebooting stuff.
I've been searching far and wide on how to go back to stock and I have found just the nvflash but my serial starts with B70 so I know I can't use it.
I decided to reflash Android HD Revolution because it's the only way the tablet will work, but I would love to go back to stock so I can use the gps properly.
So, Is there any way I can go back to stock? If this means something, I live in South America, so I assume I need a WW thing or whatever that means
Thanks in advance for your help
There's a flashable rooted stock ROM here
http://forum.xda-developers.com/showthread.php?p=19093950
Thank you vyer much, I had seen that thread but since it said the following:
This will not work unless you have:
1. clockworkmod
2. STOCK firmware (root is fine)
3. the US or WW firmware
4. The appropriate prerequisite firmware (e.g. the latest firmware before this update)
Click to expand...
Click to collapse
I thought it wouldn't work.
Would you mind helping me understand the rules for flashing this version please? Right now I'm running Android Revolution HD 2.3.0
Thanks again!
Reboot into CWM recovery
Clear data and flash ROM. You can use Titanium backup to save apps and data if you don't want to lose anything.
baseballfanz said:
There's a flashable rooted stock ROM here
http://forum.xda-developers.com/showthread.php?p=19093950
Click to expand...
Click to collapse
In my understanding that is not a (complete) ROM but just an OTA update for a stock rom. Cannot be used to replace another ROM.
That's the same thing I understood from the ROM flashing rules.
I guess there's no stock rom that I can flash? It can't be (or can it?)
http://eeepadhacks.net/transformer-hacks/how-to-unrootunbrick-eeepad-transformer/
Steps 1 - 10 will get you a stock rooted ROM.
OK this is the link that has the full ROM. CWM flash-able.
http://forum.xda-developers.com/showthread.php?t=1409584
thank you all for the answers!!!
Baseballfanz, I've already tried that one, but it didn't work. Thanks though.
Neidlinger, thank you very much for pointing me in the right direction! If I ever find another GPS problem (since I haven't found one since I reflashed Android Revolution) I will use this tutorial.
Thanks again

How to remove ClockWorkMod Recovery?

Several months ago I purchased a NS4G on Craigslist. I wanted to use it as an iPod touch without the data. It came rooted with SuperUser. The phone keeps prompting me to OTA to 2.3.7 (it's currently on 2.3.5) I used Gingerbreak to unroot and it worked, SuperUser is now gone. However, ClockWorkMod Recovery is still present and 2.3.7 won't install. The phone reboots, goes to about 1/3 of the progress bar, and then fails. I just want to get the phone on completely stock 2.3.7, in preparation for the coming 4.0 OTA.
Hopefully the solution doesn't involve flashing a custom ROM, I've never done that before. Thanks!!
No need to get it OTA, you can just flash the stock ICS ROM found in the stickies of the development forum of this phone. Of course follow instructions closely.
Sent from my Nexus S using xda premium
But I'm selling it and need it to be completely 100% original and stock, which is what the buyer requested..
You want to use fastboot to flash a stock recovery. Peter Alfonso has them all listed on his site.
Thanks. I'm really not familiar with fastboot, and is there any way you could give me a link with instructions or the files I need? My build number is GRJ90.
And if there's anyway for me to avoid a rooted stock ROM, that'd be great. Just pure stock 2.3.7.
The stock image on Rom manager has the recovery bootloader included.
Flash a stock gb rom from cwm. You will find a list of them in either general or android development threads, not sure which. Completely stock, unrooted and as far as I remember the stock recovery is included. If not then the person will never know anyway as if someone doesn't want any non stock features then they won't know how to get to recovery anyway.
Actually I don't think they have stock recovery. Just flash the stock rom and then fastboot flash the stock recovery like was mentioned above. All you need to type is:
Fastboot flash recovery xxxxx.img
Xxxxx.img is the name of the image file you download.
Don't cheat the buyer...Tell him exactly what he's buying...And that you returned thedevice back to stock again.It's just not worth it.

[Q] I have deleted custom and stock ROM stuck in recovery and stuck at boot screen

So.. The other day I rooted my htc sensation perfectly, and gained super user access, S-off and all that stuff to root.
So I flashed a MIUI rom onto the phone which worked perfectly.
Today I tried to flash the Virtuos Quattro ROM onto my phone and it didn't work. So I cleared the cache, user data, and all that, but every time I tried to flash the rom it came up with an error.
(At this point when I turned the phone on , it when in a boot loop..l unless I went into recovery mode.) so I tried to restore the MiUI ROM and it wouldn't work anymore..
So I formatted the system and still no luck. Formatted the SD card and no luck.
However, after doing all of that, I lost the MIUi ROM, have no way of getting to a home screen, and I don't know how to get back either to my stock rom or to the MIUI rom.
It still says I'm S-off.. But I have no clue how to get back to either my stock rom ( because I have no idea where to find it) which is what I want to do again
Have I deleted the stock rom?
Is there a way to get back to the stock rom in this case? Or what should I do?!?
In desperate need of help guys!!
Cheers
Nothing to worry.
Virtuous rom, you need to flash latest firmware in order for this rom to work. Read rom guide carefully, there is a guide how to flash virtuous rom in development section if I remember correctly.
Sent from my HTC Sensation using xda premium
Csapty_htc said:
So.. The other day I rooted my htc sensation perfectly, and gained super user access, S-off and all that stuff to root.
So I flashed a MIUI rom onto the phone which worked perfectly.
Today I tried to flash the Virtuos Quattro ROM onto my phone and it didn't work. So I cleared the cache, user data, and all that, but every time I tried to flash the rom it came up with an error.
(At this point when I turned the phone on , it when in a boot loop..l unless I went into recovery mode.) so I tried to restore the MiUI ROM and it wouldn't work anymore..
So I formatted the system and still no luck. Formatted the SD card and no luck.
However, after doing all of that, I lost the MIUi ROM, have no way of getting to a home screen, and I don't know how to get back either to my stock rom or to the MIUI rom.
It still says I'm S-off.. But I have no clue how to get back to either my stock rom ( because I have no idea where to find it) which is what I want to do again
Have I deleted the stock rom?
Is there a way to get back to the stock rom in this case? Or what should I do?!?
In desperate need of help guys!!
Cheers
Click to expand...
Click to collapse
Just download a Rom on you computer and while in recovery enable usb storage and copy the Rom to your ad card and flash again. Unless you want virtuous you have to flash a newer firmware like the guy above me said
Sent from my HTC Sensation XE with Beats Audio using xda premium
How do you turn on USB mass storage in recovery?
And is there a way I could go back to my stock rom?
everyday48 said:
Nothing to worry.
Virtuous rom, you need to flash latest firmware in order for this rom to work. Read rom guide carefully, there is a guide how to flash virtuous rom in development section if I remember correctly.
Sent from my HTC Sensation using xda premium
Click to expand...
Click to collapse
would you be able to link me to the instructions on how to do that ?
you can take your sd card out and plug it in your computer and put the PG58IMG.zip in the root of the sd card and virtuous quattro in any folder
after that get the sd card in the device go to bootloader flash the new firmware (keep in mind tho that to flash the new firmware you have to be superCID) then go to recovery wipe and flash virtuous quattro and youre all set
heres the thread were you can find the new firmware:
http://forum.xda-developers.com/showthread.php?t=1459767
Well befo trying that, I tried what the other guy said and used USB storage to put a ROM on... But when I went to rrecovery and tried to flash it, it keeps saying 'error, can't mount /sd-ext!' and then aborts the flash.... So I can't put anything on still (
Csapty_htc said:
Well befo trying that, I tried what the other guy said and used USB storage to put a ROM on... But when I went to rrecovery and tried to flash it, it keeps saying 'error, can't mount /sd-ext!' and then aborts the flash.... So I can't put anything on still (
Click to expand...
Click to collapse
re download the rom.. sounds like a bad download... if you wanna run ics... download new firmware name it whatever it's supposed to be name... put it on the base of the sdcard... sdcard/ ok now have your downloaded rom and the firmware on the sdcard. not a folder just in the base directory... ok in recovery wipe everything first... data cache system boot... everything except sdcard... then flash/install the rom.... then reboot to bootloader in the power options in ext4 recovery , the bootloader will read the firmware file... should be named pd58img or something like that (dont quote the file name i could be wrong) anyways the bootloader will pick it up and ask you if you wanna update, hit volume up for yes... after it's done hit the power button again to reboot and all should be welll with ics... oh and then hit the thanks button for me..... you really just need to open to browser windows... one where you download the firmware read how they say to install one for the rom read how they say install and then look at my post... with all the info here i think u can figure it out... sorry if i aint making sense i just wored 14 hours... gotta sleep now... good luck
Sent from my Revolver Powered Asus Transformer

Stuck on Samsung logo screen after flashing bootloader!

Hey guys,
I was previously on xtresolite 2.4 lollipop rom and saw that he had a new rom out based on Marshmellow 6.01.
The instructions for the installation the new rom said to flash the new bootloader, modem and recovery before installing the new rom.
I flashed the bootloader with Odin using the BL button as instructed and how it's stuck on the Samsung Screen. I can still boot into download mode, but that's about it. It won't let me boot into recovery. Doing a bit of research it says to boot into download warning screen and cancel. Then quickly do the recovery buttons (volup, home, power), but it still won't go in.
So now I'm stuck! i'm trying to download the new stock Marshmellow firmware to see if I can install that, but aside from that I'm not sure what else I can do.
Any suggestions? Since I'm still able to use Odin, can I try to re-install the correct bootloader or is that too late? I'm not even sure which bootloader to install now. :crying::crying::crying:
Any help is much appreciated!
Thanks,
kc
as long as you can boot into the download mode, everything's alright. try flashing the latest stock rom for your model. then a new recovery, and then the new xtrestolite rom.
if something fails. do it again.... flash the latest stock rom, and so on.
Just make sure you have the correct model software for your phone and there won't be any issues. Did you backup your imei way back when you rooted on lollipop? If you did then everything will be fine if you didn't, Restore stock ROM and root, then backup your imei, hopefully you won't have any issues with your modem
Try pressing on power + vol down untill the phone shuts down then quickly press home+power+vol up before the phone starts . you will be in recovery try a factory reset then wait for the first boot. Voila !
hey all, just wanted to update. I still couldn't get into recovery, but was able to flash the stock rom and it's working as stock right now. Been using it for the past week or so and no major issues noted. I'm a bit scared to mess around again
Now that I'm on stock Marshmallow 6.0.1 rom, do I still need to try and flash the modem and boot loader for it?
Also, now that i'm on stock do I need to unroot again to install the twrp recovery? or can I just go into odin and flash it right away?
Thanks again for the help and suggestions!!!
tnimk said:
hey all, just wanted to update. I still couldn't get into recovery, but was able to flash the stock rom and it's working as stock right now. Been using it for the past week or so and no major issues noted. I'm a bit scared to mess around again
Now that I'm on stock Marshmallow 6.0.1 rom, do I still need to try and flash the modem and boot loader for it?
Also, now that i'm on stock do I need to unroot again to install the twrp recovery? or can I just go into odin and flash it right away?
Thanks again for the help and suggestions!!!
Click to expand...
Click to collapse
Stock rom overrides everything so your root is long gone & you now have the latest bootloader & modem already - don't stress & no need to do anything else! If you want custom recovery simply flash with latest TWRP using Odin in download mode (in tar format using AP button). Don't root with TWRP if asked to - instead download latest recovery flash-able SuperSU (ZIP) onto your device & then flash it using TWRP. This will be the safest option for you (with root if you want).
AFAIK one always uses the "AP" button if you wanna flash <anything> with Odin - not the BL button (I've never used this). The rest are for pro's only (of which I'm not one). I'm simply a regular rom flasher & read/study/compare several guides before attempting anything I've never done before with my device. If the overall feeling is not a good one, rule of thumb is I don't proceed until I feel confident enough about what I'm attempting to do.
Good luck.
On my sm-G920I
I flashed the xtresolite ROM without first flashing the bootloader and modem and it worked fine for me, if you back up everything with an otg cable onto a USB then flash the ROM everything should work fine but you will have to wait around 5 minutes for it to boot. If your still waiting after 10-20 minutes then you did something wrong and you can just wipe your entire phone then recover everything from your backup on your USB ????????

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