Database Develop

[Q] No OS installed

I had installed CM10 on my optimus 2x but I had a problem with the rom so I tried to flash another rom.
By mistake I wiped data, davlik-cache and everything else. So I don't have a backup. When I try to install another rom through TWRP is says that it failed and afterwards it says No OS installed, Are you sure you want to reboot?
Please I only want to return to the original stock rom and upgrade from that to ICS. I found the guide on how to update to ICS so all I'm asking for is how to get out of this No OS installed trouble.
I appreciate alll effort.

teddycypria said:
I had installed CM10 on my optimus 2x but I had a problem with the rom so I tried to flash another rom.
By mistake I wiped data, davlik-cache and everything else. So I don't have a backup. When I try to install another rom through TWRP is says that it failed and afterwards it says No OS installed, Are you sure you want to reboot?
Please I only want to return to the original stock rom and upgrade from that to ICS. I found the guide on how to update to ICS so all I'm asking for is how to get out of this No OS installed trouble.
I appreciate alll effort.
Click to expand...
Click to collapse
Hi Mate dont panic it´s easy to fix have u try any Nflash procedure yet ?

Try Stefans V28G via nflash:
http://forum.xda-developers.com/showthread.php?t=1986097
Direct link: http://d-h.st/PNj
Installation NVFlash version (under Windows): (internal SD will be wiped, /data partiton can be saved and restored with 2nd generation builds)
download the ROM, unpack it with WinRar, 7Zip or similar to any folder you want
take battery out of phone, press VOL + AND VOL - simulataneously, and while doing this plug the phone via USB to your PC
screen of phone remains black, this is normal, but you should hear a sound that you plugged the device. Probably you have to install APX drivers at this point if you are asked. They are included in the latest NVFlash builds. Tutorial on driver installation: http://www.modaco.com/topic/335416-n...-links-active/
assuming that you already installed APX drivers: run the "flash_windows.bat" file in the folder where you extracted the ROM
follow the instructions
That's already it Usually no complications to be feared. Enjoy!
Click to expand...
Click to collapse

You can connect phone to pc and copy a cm10, don't reboot phone, you must mount mass USB storage. Copy and flash: )
Inviato dal mio LG-P990 con Tapatalk 2

Will try it out
Thanks Domfis and Creison, I will try it out and see what happens. I hope it works :fingers-crossed: out cause I really do not wish to change my phone now that official ICS is out. If I manage to do this I will wait till summer to change my phone. Currently using my old nokia 3310

teddycypria said:
I had installed CM10 on my optimus 2x but I had a problem with the rom so I tried to flash another rom.
By mistake I wiped data, davlik-cache and everything else. So I don't have a backup. When I try to install another rom through TWRP is says that it failed and afterwards it says No OS installed, Are you sure you want to reboot?
Please I only want to return to the original stock rom and upgrade from that to ICS. I found the guide on how to update to ICS so all I'm asking for is how to get out of this No OS installed trouble.
I appreciate alll effort.
Click to expand...
Click to collapse
Please ask all questions in Q&A. Thread moved there.

teddycypria said:
Currently using my old nokia 3310
Click to expand...
Click to collapse
ROFL!!! :laugh:

assistance plz
also getting same message.but when flashing rom says no os want to continue. any help would be great. still have stock rom.

infamous215 said:
also getting same message.but when flashing rom says no os want to continue. any help would be great. still have stock rom.
Click to expand...
Click to collapse
i suppose you're on the old bootloader? then just use AIO Toolkit ->> http://forum.xda-developers.com/showthread.php?t=2020737
Use Option 4, then you'll get the new bootloader and CWM installed. Afterwards just flash a ICS Rom or CM10(ICS BL) via CWM!

error
I have had LG P9920 Rooted phone and its working smoothly( I rooted my phone using cyanogenmod 10.2 and super user cmd ) .yesterday I try to install new kikkat os for my rooted lg phone . and I am download new recovery .img and zip file ,then I mounted twrp recovery .img file in command line in phone (dd-if ….)after mount that .img I restarted my phone and boot up twrp the I wiped data, davlik-cache and everything else. So I don't get a backup. Then system and android data I wiped.it error shown “e: unable to mount sdcard .system and fail to factory reset “…
I cant see internal memory its show 0mb.so I tried to several time wiped data and everything, but finally “TWRP is says that it failed and afterwards it says No OS installed, Are you sure you want to reboot? “
Please anyone who can have same idea above this matter please help me, I appreciate all effort.

mahesh dimuthu said:
I have had LG P9920 Rooted phone and its working smoothly( I rooted my phone using cyanogenmod 10.2 and super user cmd ) .yesterday I try to install new kikkat os for my rooted lg phone . and I am download new recovery .img and zip file ,then I mounted twrp recovery .img file in command line in phone (dd-if ….)after mount that .img I restarted my phone and boot up twrp the I wiped data, davlik-cache and everything else. So I don't get a backup. Then system and android data I wiped.it error shown “e: unable to mount sdcard .system and fail to factory reset “…
I cant see internal memory its show 0mb.so I tried to several time wiped data and everything, but finally “TWRP is says that it failed and afterwards it says No OS installed, Are you sure you want to reboot? “
Please anyone who can have same idea above this matter please help me, I appreciate all effort.
Click to expand...
Click to collapse
Since data is lost anyway, try running AIO toolkit to reflash the bootloader which also fixes recovery and partitions.

[Q] x8 new ROM problem, need help

Hi guys, I'm having trouble with new ROM installation. I've been using Gingercruzt ROM since last spring with stock kernel. Bootloader is not unlocked, I've only rooted the phone. It's been working fine until I decided that I want to try something new today. I downloaded the GingerDX rom and installed it with CWM. Everything went fine and I rebooted the system. The phone didn't start, it got stuck on the SE logo. I couldn't enter CWM or xRecovery anymore. It bricked. Using SEUS I brought back the stock rom. I rooted the phone again, installed newer version of CWM from the toolkit, etc. I downloaded the zip again, installed it again - it bricked the phone the same way. Then I tried with two different roms - FroyoPro and Free Dom experience with full wipes on everything before installing - same thing, doesn't start. I was able to enter xRecovery with FroyoPro but no CWM and it get stuck at rom's loading screen.
Help please, what happened to my phone Why doesn't it load a ROM like it did yesterday?
Thanks in advance!

vgaBG said:
Hi guys, I'm having trouble with new ROM installation. I've been using Gingercruzt ROM since last spring with stock kernel. Bootloader is not unlocked, I've only rooted the phone. It's been working fine until I decided that I want to try something new today. I downloaded the GingerDX rom and installed it with CWM. Everything went fine and I rebooted the system. The phone didn't start, it got stuck on the SE logo. I couldn't enter CWM or xRecovery anymore. It bricked. Using SEUS I brought back the stock rom. I rooted the phone again, installed newer version of CWM from the toolkit, etc. I downloaded the zip again, installed it again - it bricked the phone the same way. Then I tried with two different roms - FroyoPro and Free Dom experience with full wipes on everything before installing - same thing, doesn't start. I was able to enter xRecovery with FroyoPro but no CWM and it get stuck at rom's loading screen.
Help please, what happened to my phone Why doesn't it load a ROM like it did yesterday?
Thanks in advance!
Click to expand...
Click to collapse
Did u cleared 'dalvik-cache' in case of froyopro & when u are stuck at 'Sony Ericsson' logo did u checked that u have downloaded thi Rom zip for 'stock kernel' I think this the problem download zip for stock kernel
Hit thanks if this helped u
sent from my W8 using client-server technology

Yes, I cleared all the possible caches, system and other folders. I even formated my sd card, just in case...
I downloaded all the right roms for stock kernel, all three of them. As I said, I've done this before and it worked from first try.
Thanks for trying to help me!

vgaBG said:
Yes, I cleared all the possible caches, system and other folders. I even formated my sd card, just in case...
I downloaded all the right roms for stock kernel, all three of them. As I said, I've done this before and it worked from first try.
Thanks for trying to help me!
Click to expand...
Click to collapse
You should not format /system, cause you are actually removing recovery+rom
& are you sure that froyopro supports stock kernel?
Sent from my ULTIMATE using Tapatalk 2

jay-z-s said:
You should not format /system, cause you are actually removing recovery+rom
& are you sure that froyopro supports stock kernel?
Sent from my ULTIMATE using Tapatalk 2
Click to expand...
Click to collapse
yup froyopro support stock

vgaBG said:
Yes, I cleared all the possible caches, system and other folders. I even formated my sd card, just in case...
I downloaded all the right roms for stock kernel, all three of them. As I said, I've done this before and it worked from first try.
Thanks for trying to help me!
Click to expand...
Click to collapse
Then don't format /system
sent from my W8 using client-server technology

try to redownload the rom. flash it again after a full wipe, then reboot.
signature under repair

I cleared the system folder before flashing a new ROM just to make sure I have deleted the stock ROM.
I tried with three different new ROMs, none of them started. Strange thing... everything goes well with the install and then it just won't turn on.
Do you think it's going to be different If I try to unlock the bootloader and flash nAa's kernel? I don't really want to do that but the phone is manufactured before the 29th week so it's capable.

are you sure it doesnt turn on?,first boot may take some minutes...

Yeah, I know, I've left it for more than 15 minutes with any of the tried roms.
I think I should write down the steps I'm taking after the flash back to stock rom with SEUS.
1. Activating debugging mode and unknown applications.
2. I already have the Android SDK, adb server and drivers from before so I open SuperOneClick and root the phone. Busybox is installed and Superuser is on. Everything goes smoothly during the process.
3. Using x8toolkit I install xRecovery and CWM via Dualrecovery.
4. Reset and entering CWM. Full wipe, install from zip, installation goes without problems and says - Go on buddy, restart and start using
5. Reset, Sony Ericsson logo and that's it. Nothing more happens. With GingerDX and Free Dom experience I can't enter recovery any more. FroyoPro's starting screen shows up after the SE logo but that's all it does - it never goes any further. I can enter xRecovery but no CWM.
I tried installing roms with both xRecovery and CWM - all the same. Could it be some physical damage even though the stock rom runs perfectly well? I don't know, I'm a bit desperate as the battery lasts half a day with the stock rom.

Just to end this thread, nothing worked for me so I unlocked the bootloader, flashed nAa's kernel and got a new ROM compatible with it - it works like a charm now. Thanks for your support guys!

Phone keeps booting to CWM

Just bought the phone and Dev Unlocked it and Rooted it, after abit of failure I managed to root it. Phone worked fine I tried to install a mod and that's when I thought If there's any errors I can just delete everything and install but that wasn't the case it would stay frozen, I tried aroma manager it wasn't showing much files so I thought I would try and install the stock rom again that didn't work I then tried another rom and just been booting to CWM the sd won't mount so I been sideloading these files. :crying:

Before flashing the stock ROM you need to relock the phone first.

I just managed to get the phone working again
But a problem I have is that certain apps will fail to install on my phone like root explorer I would get a message saying Couldn't install on USB or SD card. Is this due to a partition or some other type of error? I had more or less the same problem on my S2 when I went back to stock. I later installed CM10 and the problem didn't occur, would I need to install another rom or is there a slightly easier fix for this?

[HELP]Xperia SP stuck in cyanogenmod logo after update

Hello,
I flashed CM11 yesterday and everything went alright. This morning I noticed I had an update for it and proceed to do it.
After the instalation and optimizing all apps it asked me for my simcard PIN and after I unlocked the phone it just went back to the cyanogenmod logo over and over.
I tried to reboot phone but it didn't help.
I've tried to search for similar threads but since i'm a newbie (first time I ever flashed anything) to this I decided to create this thread.
What should I do?
Thank you!

try to use flashtool. google it on how to use flashtool or check other threads.

So I guess i have to flash a stock ROM with flashtool and do it all over again right?
And btw, any reason you guys might think It got stuck in bootloop after I updated CM11? I came from a fresh stock rom. I'm kinda scared it might happen again after the reinstall.

Can't you enter recovery to flash a nandroid backup? (If you have one)
If not, you have two options to choose from.
Fastboot or flash a kernel with CWM or TWRP.
ADB push a zip file of a ROM and flash that.
Flash an FTF file using flashtool and start all over again.
There are many reasons why you're stuck in bootloop at the moment.
With the info you provided, there's no way of telling what caused it for you.

Well, i flashed stock ROM with flashtool, installed CM11 and I had no problems.
Went to settings and OTA update was available. Downloaded it and installed it, stuck in loopboot again. I just can't figure out what's wrong. My phone has bootload unlocked.
Might just do it all over and not update, is that a problem?

Don't use OTA, just download and flash updates manually using recovery.

In the future, for your ease, if this happens again just wipe the phone very clean (cache, /system, /data etc except /boot) and then re-flash the CM zip that you have.
It is a good practise if you make a nandroid backup before flashing a newer version of zip, in case of breaks. Or, you can have Titanium Backup to backup your apps automatically (pro version) everyday, so that you can be ready if there will be something bad happen.

Help required for installing custom ROM N920CXXS3BPL5

I wanted to try and install a custom ROM on my Note 5 N920CXXS3BPL5. As you would guess, I messed up. I wiped the whole system, including the backups. Now the phone is booting into TWRP. But I cannot go ahead from there.. Tried to install many ROMs, although they get installed, they get stuck at loading after installation.
Do we have anyone in UAE in this forum?
Can someone help me to install a CustomROM for this phone please....

Try gOing back to stock rom and try again .. If you can boot the phone into download mode you can easily install stock rom through odin or Samsung smart software...