No OS installed! Are you sure you wish to reboot? - Galaxy S III Q&A, Help & Troubleshooting

Hi all
How exciting it is to see that so many people are so involved in improving or fixing their mobile devices.
I got some sort of a virus on my Samsung Galaxy S3 so decided to try to wipe it clean and load a more up-to-date version of Android on it. It had 4.3.?. On a Windows 7 PC, I downloaded the Skipsoft Unified Android Toolkit (version 1.4.5). I think now I didn't need to but probably succeeded in rooting my S3 with Kingo ROOT.
Next, using the toolkit and Odin, I think I succeeded in flashing the recovery-twrp-2.7.1.0-i9300.tar custom recovery.
My phone would only boot up with the stock Android.
I took me a while before I learnt about entering the recovery mode by holding the volume up, home and power-on buttons simulateously.
In the recovery mode, I used Wipe, Advanced, ticked all of the boxes and wiped everything on the phone.
Then, using the toolkit and Odin again, I flashed the same recovery-twrp-2.7.1.0-i9300.tar custom recovery I'd flashed before.
I still can't boot my phone. If I choose Reboot from twrp (v2.7.1.0) and then either System or Recovery, I just get, "No OS installed! Are you sure you wish to reboot?"
I can still enter either download or recovery modes but the latter is something of a hit and miss affair.
Using File Manager in the twrp I can see lots of files and directories so guess I managed to flash something.
Also, using Terminal Command I see that my prompt is a "#"so think I'm still rooted.
I know something about Unix and programming mainframe computers but am not an expert with mobile devices. I'd be so grateful if someone could please advise me as to what to do?
Mike

You wiped system partition ;-;
If you want stock rom you need to flash the stock rom by odin.
I recommend you to install a custom rom like Temasek or CM13, it's real easy just flash the zip.

Haha yes^ this guy is right
You might have to flash stock rom if you somehow wiped efs, most of the time custom roms doesn't include efs with them

Turga said:
You wiped system partition ;-;
If you want stock rom you need to flash the stock rom by odin.
I recommend you to install a custom rom like Temasek or CM13, it's real easy just flash the zip.
Click to expand...
Click to collapse
Thanks for your response, Turga and snkmv, below. I didn't know what efs was so looked it up on the net and found this worrying but expert explanation from ryanrazer and Rukbat in androidcentral ( http://forums.androidcentral.com/as...erstanding-cwm-backups-efs-partition-etc.html )
In twrp's recovery mode on my phone and using File Manager, I see that the directory /efs is empty (all files are shown in File Manager, right, including invisible files?)
I'd prefer to try to flash a custom ROM which includes efs rather than the stock ROM. Do Temasek or CM13 include efs or does another, reliable custom ROM?
Thanks again folks
Mike

Related

[HELP] Attempted installing paranoid, resulted in always booting to CWM instead.

I tried following this:
http://forum.xda-developers.com/showthread.php?t=1580070
"INSTRUCTIONS" part:
* RECOVERY: FACTORY RESET IF YOU WERE USING ANOTHER ROM!
* RECOVERY: Install Rom: Download
* RECOVERY: Install Gapps, ALWAYS-EVEN FOR UPDATES: Download (find the latest one that carries the "jb" tag)
* RECOVERY: Wipe Cache Partition
* RECOVERY: Wipe Dalvik Cache
* Reboot and enjoy
Click to expand...
Click to collapse
did all the above, never forgot any of the 3 wipes/resets that were necessary.
used this rom file:
http://goo.im/devs/paranoidandroid/roms/i9100g
(latest one)
for my Galaxy Samsung S II GT-i9100g.
I had CWM and also had a rooted android 2.3.
first boot it showed me the normal samsung boot screen, for 45 minutes....
so I restarted and the phone gave me the same behaviour..
so I removed the battery to turn off the phone, and attempted to reinstall the whole thing, going through this process again from scratch
not forgetting any of the wipes etc...
now every time I boot it, it leads me to CWM instead of the normal boot screen and the expected paranoid rom eventually...
I followed this path because CM 10 failed me because upgrading from 2.3 to 4.x requires going through something that is called "stock" or as I think it actually is - google's /manufacturer's original firmware/rom production line thingy
and after that it needs me to re-enable root on that stock rom all over again. And only then I may attempt to install CM10...
so I picked paranoid instead, because in it's instructions is showed me no such constraint. heck it can't give me that constraint because there is no "stock" of android 3.x for smartphones
but then this issue happened... so I need your help.
I found similar search results but couldn't figure out their solutions or how whatever triggered that same problem (which isn't mentioned in those threads) is related to what I did to my phone... (so that I will not repeat the same mistake)
your help is much appreciated as I need it so so much!
Huh?
Just flash a stock ROM, get back on your feet and go CM or paranoid.
Sent from the little guy
gastonw said:
Huh?
Just flash a stock ROM, get back on your feet and go CM or paranoid.
Sent from the little guy
Click to expand...
Click to collapse
by "flash"ing you mean the option "install from a zip file" in CWM in recovery mod?
if I have some rom, the only way for me to install another would always be by going through that middle step of also installing a 'stock' rom as well?
there is no way around it?
installing a 'stock' rom, wouldn't it make me loose my root I have on the phone and force me to root it all over again before I can continue install anything at all?
thats the reason I wanted to try out the paranoid way of doing this instead of the CM10, because I have no interest in rooting my already rooted phone and I hoped that paranoid does not need me to go to stock first....
Couple of things:
Stock: why, when in trouble, we suggest stock?
Stock is the original state of the phone.
Samsung write it for our device to work flawless, so, by flashing stock we can check if our device is fully functional.
Imagine you flash a custom ROM and you lose IMEI, you go "wtf?" right?
In order to check if your EFS folder is f&#cked up, you flash stock and check if your IMEI is still there.
We can always use stock to take a long breath "phew, we're fine" after a f*&k up.
You can flash stock via CWM (zip file), Odin (tar file, md5) and mobile Odin (tar, zip and md5).
CWM: custom recovery, you can get it by flashing a custom kernel or by flashing it via stock Recovery (generally comes with BusyBox and SuperUser app, which gives you Root).
Odin: Just download any version and follow directions.
Mobile Odin: Well, this is a hell of an app, you need Root to run it.
It does all that Odin does, plus it roots your ROM (only stock ROMs) while it's flashing it, all by itself. Costs 5 bucks, but it's damned worthwhile.
Wanna know the best scenario?
You get M.O Pro, you get a nandroid back up online app, you get CWM zip files (sitting on your SD).
With that line up, you can flash whatecer the hell you want and you will ALWAYS have root.
Sent from the little guy
some questions
ONE QUICK IMPORTANT QUESTION BEFORE THE REST:
If I use mobile odin, will I be able to use it to install stock rom and also root it at the same time?
SECOND IMPORTANT QUESTION:
you said I could flash whatever I want and still have root, but my problem was not 'not having root', it was not having the flash process complete successfully... how do I attack that?
THIRD IMPORTANT... info... :
My "BUILD" version is "GINGERBREAD.XXKL5", isn't that a 'stock' one?
If you don't have a lot of time,
then the rest of this post is not as important as the 2 questions above...
gastonw said:
Couple of things:
Stock: why, when in trouble, we suggest stock?
Stock is the original state of the phone.
Samsung write it for our device to work flawless, so, by flashing stock we can check if our device is fully functional.
Imagine you flash a custom ROM and you lose IMEI, you go "wtf?" right?
In order to check if your EFS folder is f&#cked up, you flash stock and check if your IMEI is still there.
We can always use stock to take a long breath "phew, we're fine" after a f*&k up.
You can flash stock via CWM (zip file), Odin (tar file, md5) and mobile Odin (tar, zip and md5).
CWM: custom recovery, you can get it by flashing a custom kernel or by flashing it via stock Recovery (generally comes with BusyBox and SuperUser app, which gives you Root).
Odin: Just download any version and follow directions.
Mobile Odin: Well, this is a hell of an app, you need Root to run it.
It does all that Odin does, plus it roots your ROM (only stock ROMs) while it's flashing it, all by itself. Costs 5 bucks, but it's damned worthwhile.
Wanna know the best scenario?
You get M.O Pro, you get a nandroid back up online app, you get CWM zip files (sitting on your SD).
With that line up, you can flash whatecer the hell you want and you will ALWAYS have root.
Sent from the little guy
Click to expand...
Click to collapse
the saddest part is that I couldn't figure out most of what you just said
what is 'nandroid'? 'flashing'? do you mean like dd in linux? copying to the entire flash storage device?
'IMEI'? huh..? O_O
at the moment I was able to 'get back on my feet', I restored everything back to normal with manual copying of important parts of the CWM corrupted backup from this week, and old stuff for a CWM backup made few months ago.
now that I am at a 'normal' state.. I want to install paranoid or CM10 on my GT-I9100g.
which one of those 2 does not force me going through installing stock?
I have this fear of installing stock that it will take away my root and that I will have to use adb from command line to re-enable root afterwards, which I have bad experience with.
I need to know a few things before I attempt to install stock via CWM,
will installing stock disable my root? will installing stock disable my ability to load recovery boot menu CWM?
is 'root' an attribute or state that belongs to the running rom itself after boot has been completed and to that only?
or does it also belong to the state the device is at while in the recovery boot menu CWM ?
I tried messing around with ADB in the past to see if I could root devices via that way but it wasn't very successful so thats why I'm afraid of having to attempt it again.
bumpitybump
even though a year later, I would still love some replies
resurrecting my motivation to do this once again.
copy paste from my other post;
before flashing, you will need these;
-stock rom (get it from Sammobile, sign in and select your country and phone model)
-blazing kernel for recovery (search in XDA)
-custom rom (CM, PA, Supernexus...your choice)
-backup your data
-GApps (get the latest one)
-you must know what are you doing and dont flame/blame other member if something wrong
how to flash;
-make sure you are on latest stock rom (mine is JellyBean 4.1.2), if not like the OP, flash the latest stock rom using Odin;
*reboot your phone in Download Mode
*open Odin and in PDA option select your stock rom and then Start
*if done it will display Done and disconnect your phone, it will boot up
*if bootloop, reboot into Recovery Mode, and then wipe data and cache, and then reboot normally
-after updating your phone to latest stock rom, copy your custom rom, GApps, and Blazing kernel into external SD card, then reboot into Recovery Mode
-choose "apply update from external storage" and choose Blazing kernel, wait for it to finish update
-reboot normally, and then reboot back to Recovery Mode. this time you will notice that your recovery is different from the previous one
-select install zip > choose from external storage/sdcard 1 > and then choose your custom rom. then wait for it to finish update
-repeat the above step to install GApps, and after that reboot normally
-if bootloop, reboot back to Recovery Mode and then wipe data, cache and dalvik and then reboot
-done, now you are running on custom rom
Click to expand...
Click to collapse
and about the root, i believe that almost all custom rom rooted

I9300 Internationl ROM/Root Issues...

Hey Guys,
I'm having a bit of an issue. Currently I was running STOCK Android 4.3 JB, have been for a while, it started to get a bit slow & I was wanting to fresh install, but also try out a 5.0 lollipop ROM. I've rooted my phone in the past and installed custom ROMs before without a problem (Revolution Remix + Cyanogenmod 11), however, I decided to try Liquidsmooth 5.0 lollipop. i followed this video,
https://www.youtube.com/watch?v=QquFDFEEKlI
http://forum.xda-developers.com/galaxy-s3/development/rom-liquidsmooth-lollipop-4-0-b1-t2980477
I downloaded both files and copied them onto my MicroSD card.
I backed up my data (contacts, images, files etc..)
Booted into "Recovery Mode", wiping Cache & factory Reset
When to install from SD, located file and it started reading/installing (sorry can't remember exactly what it did), but during process it failed. I went back into Android (had to setup again), Went and made sure Developer Mode and USB Debugging was on, still didn't work.
Went to make sure CWM was installed/update, which it said it was (possibly from previous custom installs?), tried updating, failed. It said
Went and installed 'SuperSU' from Play store, but got this error.
Decided to try re-install STOCk 4.3 JB, I
made sure USB Debugging was on
loaded Odin 3.07 (or was it 3.09) and loaded 4.3 Firmware under PDA (left everything else as is)
Started and let it do its thing. It finished/PASSED and phone restarted.
i went back into the phone, installed ROM manager & SuperSU again to give it another shot... but same problem again, getting the error above.
I'm not sure what's happened and I'm not sure what "solutions" to search for... anyone have any suggestions?
At this stage I'm thinking of just going back to STOCK 4.3, then maybe try again (either with Liquidsmooth lollipop, or, Slimkat 4.4)
Thanks guys, any help would be super appreciated,
Regards,
~ Dave
Le Widget said:
Hey Guys,
I'm having a bit of an issue. Currently I was running STOCK Android 4.3 JB, have been for a while, it started to get a bit slow & I was wanting to fresh install, but also try out a 5.0 lollipop ROM. I've rooted my phone in the past and installed custom ROMs before without a problem (Revolution Remix + Cyanogenmod 11), however, I decided to try Liquidsmooth 5.0 lollipop. i followed this video,
https://www.youtube.com/watch?v=QquFDFEEKlI
http://forum.xda-developers.com/galaxy-s3/development/rom-liquidsmooth-lollipop-4-0-b1-t2980477
I downloaded both files and copied them onto my MicroSD card.
I backed up my data (contacts, images, files etc..)
Booted into "Recovery Mode", wiping Cache & factory Reset
When to install from SD, located file and it started reading/installing (sorry can't remember exactly what it did), but during process it failed. I went back into Android (had to setup again), Went and made sure Developer Mode and USB Debugging was on, still didn't work.
Went to make sure CWM was installed/update, which it said it was (possibly from previous custom installs?), tried updating, failed. It said
Went and installed 'SuperSU' from Play store, but got this error.
Decided to try re-install STOCk 4.3 JB, I
made sure USB Debugging was on
loaded Odin 3.07 (or was it 3.09) and loaded 4.3 Firmware under PDA (left everything else as is)
Started and let it do its thing. It finished/PASSED and phone restarted.
i went back into the phone, installed ROM manager & SuperSU again to give it another shot... but same problem again, getting the error above.
I'm not sure what's happened and I'm not sure what "solutions" to search for... anyone have any suggestions?
At this stage I'm thinking of just going back to STOCK 4.3, then maybe try again (either with Liquidsmooth lollipop, or, Slimkat 4.4)
Thanks guys, any help would be super appreciated,
Regards,
~ Dave
Click to expand...
Click to collapse
First of all and most important don't use rom manager! it causes more problems than anything else.The best way to install custom roms is to use Cwm,PhilZ or Twrp to install anything!
Flash superSU zip in recovery from here >> http://download.chainfire.eu/696/SuperSU/UPDATE-SuperSU-v2.46.zip?retrieve_file=1 << SuperSU forum here >> http://forum.xda-developers.com/showthread.php?t=1538053 << Technically you should not need to flash SuperSU because nearly all custom roms come with root built in so you could flash a custom recovery then wipe and flash your rom (but I can see you have been having problems doing that)
What you should do is
(1) Flash a custom recovery with Odin (Recommend PhilZ)
(2) Reboot to custom recovery
(3) Wipe phone
(4) Install custom rom (which is already rooted) from Ext SD card
(5) Reboot (If you get bootloop factory reset/ wipe cache
Also to note PhilZ recovery (which I think is better as more options and is based on Cwm) as a option to fix root in settings.
tallman43 said:
First of all and most important don't use rom manager! it causes more problems than anything else.The best way to install custom roms is to use Cwm,PhilZ or Twrp to install anything!
Flash superSU zip in recovery from here >> http://download.chainfire.eu/696/SuperSU/UPDATE-SuperSU-v2.46.zip?retrieve_file=1 << SuperSU forum here >> http://forum.xda-developers.com/showthread.php?t=1538053 << Technically you should not need to flash SuperSU because nearly all custom roms come with root built in so you could flash a custom recovery then wipe and flash your rom (but I can see you have been having problems doing that)
What you should do is
(1) Flash a custom recovery with Odin (Recommend PhilZ)
(2) Reboot to custom recovery
(3) Wipe phone
(4) Install custom rom (which is already rooted) from Ext SD card
(5) Reboot (If you get bootloop factory reset/ wipe cache
Also to note PhilZ recovery (which I think is better as more options and is based on Cwm) as a option to fix root in settings.
Click to expand...
Click to collapse
hi tallman, much appreciated for the reply
For some reason I couldnt get Philz Custom Recovery to work with odin, kept getting an error :/ . So I ended up trying TWRP, which worked, I booted into it then installed Liquidsmooth + gapps, all installed ok, but all up it was the same process you mentioned, which I greatly appreciate.
So running Liquidsmooth 5 now with TWRP recovery, though will likely give Philz recovery a shot down the track
Le Widget said:
hi tallman, much appreciated for the reply
For some reason I couldnt get Philz Custom Recovery to work with odin, kept getting an error :/ . So I ended up trying TWRP, which worked, I booted into it then installed Liquidsmooth + gapps, all installed ok, but all up it was the same process you mentioned, which I greatly appreciate.
So running Liquidsmooth 5 now with TWRP recovery, though will likely give Philz recovery a shot down the track
Click to expand...
Click to collapse
Good to hear it's working Yes it's worth persevering with PhilZ it's a good recovery although Twrp is not bad either:good:

Xposed Installer Help

Hi guys
Apologies if this has been posted in the wrong section.
I have recently inherited a Galaxy S2 (GT-I9100) running the CyanogenMod 12.1, Android Version 5.1.1
I have spent the last two day trying to and failing miserably to install Xposed Installer V3.0 Alpha 2, I have searched Google and read through numerous forums on how to resolve this, but the more I read the more confusing it becomes. I would really appreciate any help/assistance in helping me fix the problem, so that I can run the app without any issues. When I access the app's log it states:
data/data/de.robv,android,xposed.installer/log/error.logpen failed. ENOENT (No such file or directory)
Also, when I try to run Titanium Backup 6.1.0, I get an error stating:
Sorry, I could not acquire root privileges. This application will *not* work! Please very that your ROM is rooted, and try again.
This attempt was made using the "/system/xbin/su" command.
I have gone into Developer Options and set Root Access to Apps and ADB.
As I new to Android my understanding (please correct me if I am wrong) that the CyanogenMod 12.1 was actually a ROM and therefore Titanium Backup should work. FYI SD Maid not working.
Any help on both of these issues would be most appreciate, please bear in mind I am a noob where Android and Galaxy S2 are concerned.
Thanks in advance.
The forum for the i9100 is located here, but because it's so close to the i777 we can probably help a bit.
Sounds to me like your phone isn't rooted, as none of the apps you mention will work without root privileges. Install the latest SuperSU; you should be getting access prompts if you're correctly rooted.
If you are not prompted for root access when opening apps such as Titanium Backup, you'll need to install Framaroot and use the Aragorn exploit in order to easily root your device. Let us know if either of these work for you.
Hi Steve
Thanks for the reply.
I should have mentioned that I already have Super SU installed and for certain apps it does ask me to grant access. If open Super SU it displays the following apps:
Titanium Backup
Root Explorer
pops1368 said:
Hi Steve
Thanks for the reply.
I should have mentioned that I already have Super SU installed and for certain apps it does ask me to grant access. If open Super SU it displays the following apps:
Titanium Backup
Root Explorer
Click to expand...
Click to collapse
Strange. In that case have you tried doing a complete wipe in recovery, then reinstalling the ROM? In your case you would boot into recovery, wipe /system and dalvik cache, then install ROM and gapps. Just make absolutely certain you're running a custom recovery before doing this, such as CWM (ClockworkMOD) or TWRP (TeamWin), or you could damage your device if you're on stock recovery. And, of course, make sure you have the ROM/gapps already on your device before wiping everything!
Because you inherited the device the best method would normally be to flash back to stock and start all over - if for nothing else it's a good learning experience. Hope this helps.
Hi Steve
Thanks for the reply and your advice/information, very informativinformativ.
I was trying to avoid a complete wipe and reinstalling the ROM again, as Android is new to me and I don't want to mess up the installation and wreck the phone, even it was free. However, I think I have no choice and will have to bite the bullet and do it.
Thanks once again.
pops1368 said:
Hi Steve
Thanks for the reply and your advice/information, very informativinformativ.
I was trying to avoid a complete wipe and reinstalling the ROM again, as Android is new to me and I don't want to mess up the installation and wreck the phone, even it was free. However, I think I have no choice and will have to bite the bullet and do it.
Thanks once again.
Click to expand...
Click to collapse
As long as you have a custom recovery there's very little that can go wrong with a full wipe. I would suggest booting into recovery first (power button + both volume keys, then release at the Samsung logo) and make sure you're running either CWM or TWRP. While in recovery do a backup first, as a "just in case". You can always restore your device fully from a backup.
The next thing to remember is to make sure your ROM/gapps are compatible with one another. For instance, if you're installing a CM12 (Android 5.0+) ROM make sure your gapps are also 5.0+.
Best of luck!
When I attempt to go into Recovery Mode it does so, but opens a CyanogenMod screeb, it dies not show any options to backup/restore, it foes however have the complete wipe option. When I run ROM Manager I have done the following Recovery Setup, which now shows Recovery Already Installed:
ClockworkMod Recovery
TWRP
But I don't understand what I'm doing wrong, for neither option to be available in Recovery Mode?
pops1368 said:
When I attempt to go into Recovery Mode it does so, but opens a CyanogenMod screeb, it dies not show any options to backup/restore, it foes however have the complete wipe option. When I run ROM Manager I have done the following Recovery Setup, which now shows Recovery Already Installed:
ClockworkMod Recovery
TWRP
But I don't understand what I'm doing wrong, for neither option to be available in Recovery Mode?
Click to expand...
Click to collapse
Best option for you is to go to the i9100 forum and download a kernel for your phone that is compatible with the OS version you want to install (CM12, which is 5.1. in your case). With your device (as well as our i777), the kernel and recovery are fused together, so you cannot use ROM Manager to install a recovery to a separate partition.
Once you have an i9100 5.1 kernel downloaded on your phone you can flash it through the current recovery you have, then immediately reboot back into recovery. You'll then have the correct recovery and can proceed as normal with the ROM installation.
CWM absolutely has a backup/restore option, but it's hidden in a sub menu. My personal recommendation is to use TWRP recovery, as it's still being developed and is more robust/user friendly.
So as a general rule stay away from ROM Manager for system specific changes.
Thank you so much for the information/advice, I really do appreciate all of it.

Malware/Trojan survives factory reset, what can I do ? ( no usb connection)

Hello, my JIayu F2 phone got a problem, I don't know if it's a virus/malware/spyware exactly, Malwarebytes found pup.riskware.smsreg but after factory reset it doesn't find anything and the problem is still here.
There's a hand cursor that appears on the top screen and it seems like the phone is taken over, it's extremely hard to navigate and ads pop up left and right even if I disable unknown sources. Parasite apps also spontaneously install themselves.
I have changed my google password, reset the phone to factory settings, the problem is still there even before I connect the phone to the internet.
I can't flash a ROM because the phone is hard to navigate and the USB port broken. Can't install apps from the playstore, the malware blocks the download, but I can install Apks.
Is there any app I could install to check what is going on? Malwarebytes doesn't find anything anymore, should I use something else?
If there's a way I could flash a rom without the USB I'd be glad to do it but the apps I tried (flashify, rom manager) don't see the zip file image to reboot in recovery
Thanks in advance
Please can someone help?
The phone still switches itself on I can do a few stuff before the "malware" takes over, mostly in airplane or safe mode.
Do you have a custom recovery (TWRP or CWM) installed already? If so just find a stock rom for your device, boot into recovery and then wipe everything before installing the rom.
Thanks for your answer, I have ROM manager installed but CWR does not seem to work, is there a way to install it through an APK? I think the issue was it was not seeing the zip file of the stock ROM I have on the SD card. Would it work with an IMG file? I also don't know if my phone is supported by CWM or the other, on the jiayu website they only offer the SP flashtools option which requires USB connection. The file they provide for the ROM is a zip.
I can do stuff on my PC and install apks on the phone but as soon as I connect it to the internet it becomes impossible to navigate.
Thanks
The issue is it is built into the OS. Nothing short if a custom rom will fix that.
If you think a recovery can be done by an apk then you have to do more research as it doesn't seem like you are aware if your bootloader in unlocked or not
Hello so I switched the phone back on again and I do have CWM installed through ROM Manager, with superuser permission. The issue is that I can't seem to find the .zip file on my SD card whenever I browse with ROM manager/flashify/rashr, they don't see it, is it because I need to use a .img?
I have managed to reboot in recovery ( does that mean my "bootloader is unlocked"?).
If I need to get another ROM to make this work let me know which one and if I should go for a .img file or .zip
Thanks a lot!! And sorry I'm a total noob I tried to make this work on my own but have been unsuccessful
You will need to find a custom rom for it. It will not flash a stock rom. Also a stock rom will not fix it. It is built into it.
zelendel said:
You will need to find a custom rom for it. It will not flash a stock rom. Also a stock rom will not fix it. It is built into it.
Click to expand...
Click to collapse
Thanks so is the only problem the fact that my ROM is a zip file and not an IMG? Flashify has an option to install .zip files but its file explorer does not see my ROM , I don't get it.
I have looked up online and the only custom roms for JIayu F2 available seem to be the original ones. from the vendor /"stock". WHere can I find compatible alternatives? WHen I got my phone 10 months ago it had no infection, I guess it's a "backdoor" issue that enables a malware to survive factory reset?
Sorry this is my first time trying to do this, it's pretty tough for a noob.
That is part of the issue with many of those devices. Developers don't get them so there normally is not any roms for it.
Not a backdoor persay. But built into the OS from the oem.
I can't say anything about CWM recovery as I have not used it in years since it was discontinued by the developer. It most likely will not flash any newer roms.
Also if it is a stock oem rom then no recovery will flash it except the stock one.
But when I got my phone it worked fine, it's only after 10 months I started having problems, probably after installing an infected app. Wouldn't downloading the original stock ROM enable me to go back to the true factory settings, unaffected by this malware?
JIayu offers flashing with SP flashtools but it requires USB connection, I need to find a way around that :/
tintum5 said:
But when I got my phone it worked fine, it's only after 10 months I started having problems, probably after installing an infected app. Wouldn't downloading the original stock ROM enable me to go back to the true factory settings, unaffected by this malware?
JIayu offers flashing with SP flashtools but it requires USB connection, I need to find a way around that :/
Click to expand...
Click to collapse
You can give it a shot. Make sure to completely wipe the device when you do. Otherwise what ever it is could survive the flash. I have not used their software but look for an option to format all partitions before flashing. Mainly System and data
zelendel said:
You can give it a shot. Make sure to completely wipe the device when you do. Otherwise what ever it is could survive the flash. I have not used their software but look for an option to format all partitions before flashing. Mainly System and data
Click to expand...
Click to collapse
Thanks so how do I find the ROM through the file explorer? Because like I said it does not show so I can't flash it It's a zip file on my SD card, the file explorers of flashify/rashR/Rom manager only show me file directories but not the zip file.
tintum5 said:
Thanks so how do I find the ROM through the file explorer? Because like I said it does not show so I can't flash it It's a zip file on my SD card, the file explorers of flashify/rashR/Rom manager only show me file directories but not the zip file.
Click to expand...
Click to collapse
Honestly I am not sure. If It was me I would find the official way to flash the device from bootloader and not rely on recovery.

Tab S3 always booting into Odin/Download mode

Hi there,
Not sure what happened - I'm using my Tab S3 (SM-T820) for ages in the same (stable) configuration - rooted Stock, no changes/installations for months.
This morning it was in Odin/Download mode and I cannot boot into system.
I can get into recovery (TWRP), but I cannot boot into system from there either, it always returns to Odin (tried wiping Cache/Dalvik, didn't help).
For now my only idea is to let it completely discharge, charge again and give it another try.
No buttons appear to be stuck.
Any ideas or suggestions, eg sth I could check in TWRP to see what's going on?
(hopefully nothing wrong with the system partition).
Note - I'm only familiar with the typical TWRP functions needed to install custom firmware, haven't used it for much else. Obviously would prefer not to destroy my (stable) setup and spent a full day re-installing everything
Thanks a lot for your help everyone!
@Whoooo? Backup whatever possible with TWRP onto external storage (SD or OTG).
Check if file manager can access download/DCIM folders and save them as well.
Although the charging thing might help I wouldn't set my hopes to high.
Probably somethings wrong with system or boot partitions or any file needed by them.
I'm afraid you will have to reflash stock via Odin, root again and try if restoring TWRP saved Data works.
That would reduce setting up time.
bmwdroid said:
@Whoooo? Backup whatever possible with TWRP onto external storage (SD or OTG).
Check if file manager can access download/DCIM folders and save them as well.
Although the charging thing might help I wouldn't set my hopes to high.
Probably somethings wrong with system or boot partitions or any file needed by them.
I'm afraid you will have to reflash stock via Odin, root again and try if restoring TWRP saved Data works.
That would reduce setting up time.
Click to expand...
Click to collapse
Hi there,
Thanks a lot for your reply - yes, I will try that once the complete discharge is finished.
Reflashing stock - could cause this any troubles as it's already unlocked/rooted?
Or is there a chance dirty flashing the Tweaked Stock ROM could work, too?
Tablet was still on the original Stock it came with, but rooted with magisk and manually debloated...
Thanks again!
I think Odin won't care about unlocked bootloader.
But might be necessary to unlock again.
Dirty flashing afaik only works with TWRP so only flashing of zip or img files possible.
Except you sideload although Idk if that's possible on Samsungs.
Dirty flashing of a before the problem arose made backup might work.
Did you debloat while already installed or externally?
What file format does it have?
My T825 uses the debloated ROM by rorymc628 which can be flashed with TWRP as it's a zip file.
bmwdroid said:
I think Odin won't care about unlocked bootloader.
But might be necessary to unlock again.
Dirty flashing afaik only works with TWRP so only flashing of zip or img files possible.
Except you sideload although Idk if that's possible on Samsungs.
Dirty flashing of a before the problem arose made backup might work.
Did you debloat while already installed or externally?
What file format does it have?
My T825 uses the debloated ROM by rorymc628 which can be flashed with TWRP as it's a zip file.
Click to expand...
Click to collapse
Hi there and thanks again -
Took me a while to try everything but finally it's working again.
Complete battery drain didn't help, but dirty flashing did - once I got the correct version.
Basically made a nandroid backup, then flashed the tweaked rom over my existing one, starting with newer versions down to older ones.
So, flash, reboot - didn't work, restore nandroid (all), flash slightly older rom....
Till it started booting with v2.0 (probably matching my existing rom close enough).
Had to reflash Magisk as the 2.0 Rom included didn't match my Magisk Manager, but now my Tab S3 is working again!

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