Develop Bugs

[Q] Am I missing something?

Short Questions: when I flash any ROM, besides official AOKP, my phone goes into bootloop. I'm using CWM. I do a factory reset/cache etc. then flash the new ROM, i.e. stock koodo, but they all just boot loop.
Long Story: I used to have a samsung galaxy ace, and I followed the same persedure, with CWM, and it always worked. I used CWM on my tablet, but the other touch recover has given me problems and never really worked correctly, it wouldn't even install properly. I prefer CWM. From searching around, there is some super wiper, or infamus whiper that clean the phone properly from the recover before flashing. I'm not sure if we're supose to use that before I flash a new ROM, maybe that's why its bootlooping?
What do you do before you flash a ROM? I know the ROM OP have instructions, but they end in a bootloop too.

I believe you have to be more specific if you want to get help, like the version of CWM, ROM you are trying to install and steps you are taking to insall the ROM.

Click mounts & storage, format system/data, yes. Then do all your other wiping like data and caches. Then flash ROM followed by gapps.

bobiscool07 said:
Short Questions: when I flash any ROM, besides official AOKP, my phone goes into bootloop. I'm using CWM. I do a factory reset/cache etc. then flash the new ROM, i.e. stock koodo, but they all just boot loop.
Long Story: I used to have a samsung galaxy ace, and I followed the same persedure, with CWM, and it always worked. I used CWM on my tablet, but the other touch recover has given me problems and never really worked correctly, it wouldn't even install properly. I prefer CWM. From searching around, there is some super wiper, or infamus whiper that clean the phone properly from the recover before flashing. I'm not sure if we're supose to use that before I flash a new ROM, maybe that's why its bootlooping?
What do you do before you flash a ROM? I know the ROM OP have instructions, but they end in a bootloop too.
Click to expand...
Click to collapse
You are not formatting system before installing a different base(ROM).
If you format system, data, cache, and delvik you should be good to go.

[Solved] Bootloop after flashing any Touchwiz based rom

Hi,
For about a few days, I can't flash any touchwiz based rom, even the ones I could flash without any problem before. After I flash any touchwiz rom, my phone goes into a bootloop cycle. Though I can boot into recovery and download mode with key combinations. I don't know when this happened for the first time but as far as I can remember, it would be after I flashed some 4.4 AOSP rom (could be Omnirom, I'm not sure though)
What I did to recover from boot loop:
- Wipe cache, wipe dalvik cache and reboot, no joy.
- Wipe cache, wipe dalvik cache, wipe data, reboot, no joy.
- Wipe cache, wipe dalvik cache, wipe data, wipe data/media, reboot, no joy.
- Pulled out the battery between these steps too.
At first, I thought something was wrong about the aroma installer itself because the phone was getting frozen during aroma installer setup screen, then I came up that it was caused due to my older CWM version, so I updated the recovery and it didn't freze again during installation.
And by the way, I've lost my efs partition during these processes, thankfully I've had a nandroid backup from a couple of months before.
Now I'm stuck with AOSP roms and the only way I can use a touchwiz rom is to flash the stock rom via odin. But I want to use the new leaked version based Note3 featured roms.
I've seen similar topics at S4 section but I couldn't be sure if I can do the exact steps for an N7100 international device.
I'm pretty familiar with linux system and I can use adb so I can provide any kind of information you need to diagnose this issue. Thanks in advance. Best regards.
HOW I SOLVED THIS PROBLEM
- Wiped everything (system, data, sdcard, of course internal sdcard)
- Flashed n7100 16GB pit file via odin
- Flashed stock rom via odin
- During these steps, I realized that my CSC code had been changed, I've corrected it acording to my country code
- Rooted my phone again
- Flashed CWM 6.0.4.3 recovery
- Flashed DN3 V3.1 rom
- Bingo, I successifully booted into DN3 rom but had no WIFI
- Flashed MJ5 bootloader
- Rebooted, then WIFI worked without a problem
- Setup my phone and did some restore
It's all good now. Thanks for everything, I hope these steps can help someone facing the same problem.

Guys, I really need some help.. Any idea about what might the problem be?
Sent from my GT-N7100 using XDA Premium 4 mobile app

Download HD wipe script,flash the script zip via cwm/philz then try installing the rom of your choice.
I found the script from tamirda's phoenix rom thread and is very useful:http://d-h.st/fWr

Full wipe cache and reset in recovery menu, clear everything, you should be up and running.

akp.ajinkya said:
Download HD wipe script,flash the script zip via cwm/philz then try installing the rom of your choice.
I found the script from tamirda's phoenix rom thread and is very useful..
Click to expand...
Click to collapse
Thanks for the reply. I flashed this superwipe script, then flashed DN3 rom but still I got stuck at Samsung Galaxy Note II screen boot loop. I really don't understand this. What am I missing? What would happen if I wipe the entire internal memory block, I mean the whole things, even the root partition too.. I'm thinking that maybe there's some file inside the root partition that prevents me to flash touchwiz roms or perhaps something wrong about touchwiz based roms' bootloaders.. I'm truely pissed..
(InsertNameHere) said:
Full wipe cache and reset in recovery menu, clear everything, you should be up and running.
Click to expand...
Click to collapse
Have you read my first message? I remember that I've mentioned I've done already what you ask me to do.. Believe me I wouldn't shoot a new thread if I could've solved my problem with such easy steps. I've already done so many wipes, including internal SD and whatsoever.. I'm really confused and NEED help. Thanks anyway..

I think you can go for the method you mentioned.But also give a try to start fresh i.e pit file flashing...wiping everything n installing stock rom then rooting,flashing custom recovery n then installing any TW custom rom.
Also give other TW based roms a try too.

Im having the same problem but after flashing kernels (e.i. saber & perseus).
Im currently running on Tigra rom. Is this a compatibility issue or im just missing something here too?
I came across flashing bootimg but this thread http://forum.xda-developers.com/showthread.php?t=1752270
is for One S, im not sure if will work on Note 2 & haven't tried it yet.
Any suggestions? help pls...

akp.ajinkya said:
I think you can go for the method you mentioned.But also give a try to start fresh i.e pit file flashing...wiping everything n installing stock rom then rooting,flashing custom recovery n then installing any TW custom rom.
Also give other TW based roms a try too.
Click to expand...
Click to collapse
Well, the problem is gone.
What I did was the things you said.
- Wiped everything (system, data, sdcard, of course internal sdcard)
- Flashed n7100 16GB pit file via odin
- Flashed stock rom via odin
- During these steps, I realized that my CSC code had been changed, I've corrected it acording to my country code
- Rooted my phone again
- Flashed CWM 6.0.4.3 recovery
- Flashed DN3 V3.1 rom
- Bingo, I successifully booted into DN3 rom but had no WIFI
- Flashed MJ5 bootloader
- Rebooted, then WIFI worked without a problem
- Setup my phone and did some restore
It's all good now. Thanks for everything, I hope these steps can help someone facing the same problem.

Happy to help you bro

[Q] Boot loop after flashing TWRP recovery !

Hello everyone, I have a problem with my xperia S, any help would be greatly appreciated! Let's start from the beginning, I'll try to be brief :
So, I flashed TWRP recovery using the app "RASHR" (I was using the Pure AOSP Lollipop rom when doing this, if it can help), which caused my phone to always boot the recovery and nothing else. I managed to flash the rom again (I made sure to wipe using "factory reset" and "dalvik cache" before installing), and it seemd to work perfectly, but then I rebooted the phone, and got stuck at the sony logo, no recovery available.
I flashed TWRP recovery (stock-6.1.A.0.452-twrp-2.4.0.0.elf) using flashtool, then tried to install another rom (Paranoid Android, found on this thread : http://forum.xda-developers.com/showthread.php?t=2573345). The first boot was successful, but as soon as I reboot the phone, I'm stuck in a bootloop again, with a little difference : when the sony logo appears, the led becomes pink for a few seconds. No access to recovery. Then the led lights off, the logo disappears, and the phone reboots. Again and again. I just reinstalled the same recovery and tried to wipe and fix permissions, but it does not solve the bootloop, and I don't know what to do...
Could it be possible that "rashr" did a bad install of TWRP and corrupted my recovery/bootloader partition or something ?
EDIT : I reinstalled Pure AOSP Lollipop, and now for some reason, no boot loop anymore... I don't understand why, but as long as it works... problem solved !

LegatoExia said:
Hello everyone, I have a problem with my xperia S, any help would be greatly appreciated! Let's start from the beginning, I'll try to be brief :
So, I flashed TWRP recovery using the app "RASHR" (I was using the Pure AOSP Lollipop rom when doing this, if it can help), which caused my phone to always boot the recovery and nothing else. I managed to flash the rom again (I made sure to wipe using "factory reset" and "dalvik cache" before installing), and it seemd to work perfectly, but then I rebooted the phone, and got stuck at the sony logo, no recovery available.
I flashed TWRP recovery (stock-6.1.A.0.452-twrp-2.4.0.0.elf) using flashtool, then tried to install another rom (Paranoid Android, found on this thread : http://forum.xda-developers.com/showthread.php?t=2573345). The first boot was successful, but as soon as I reboot the phone, I'm stuck in a bootloop again, with a little difference : when the sony logo appears, the led becomes pink for a few seconds. No access to recovery. Then the led lights off, the logo disappears, and the phone reboots. Again and again. I just reinstalled the same recovery and tried to wipe and fix permissions, but it does not solve the bootloop, and I don't know what to do...
Could it be possible that "rashr" did a bad install of TWRP and corrupted my recovery/bootloader partition or something ?
EDIT : I reinstalled Pure AOSP Lollipop, and now for some reason, no boot loop anymore... I don't understand why, but as long as it works... problem solved !
Click to expand...
Click to collapse
You flashed the TWRP in wrong way. You need to flash it by this method.

Mirhawk said:
You flashed the TWRP in wrong way. You need to flash it by this method.
Click to expand...
Click to collapse
Hello, and thanks for the answer ! After a few days using the Pure AOSP rom and rebooting several times without any problem, I just got a bootloop again yesterday, forcing me to reflash my rom to be able to use the phone again... will your method (including your tutorial in your signature, which I'm trying as I write this) solve the problem once and for all ? It's a real pain to redownload all my apps again and again and again because of those bootloops =(
Edit : finished following your tutorials, everything seems to work for the moment, hope it will stay stable this time... thanks for your help )

LegatoExia said:
Hello, and thanks for the answer ! After a few days using the Pure AOSP rom and rebooting several times without any problem, I just got a bootloop again yesterday, forcing me to reflash my rom to be able to use the phone again... will your method solve the problem once and for all ? It's a real pain to redownload all my apps again and again and again because of those bootloops =(
Click to expand...
Click to collapse
What did You do before the bootloop was caused? Did You try to flash the TWRP again?

Mirhawk said:
What did You do before the bootloop was caused? Did You try to flash the TWRP again?
Click to expand...
Click to collapse
No, I didn't, I was too afraid of creating another problem xD I just used the phone normally, installed apps from the play store, the last one being nova launcher (but I rebooted a few times after that without any issue)., things like that.
But after applying your tutorials to flash the Lollipop Pure AOSP rom, I think the problems were caused by :
1) a wrong recovery and/or flashing method : previously I used "stock-6.1.A.0.452-twrp-2.4.0.0.elf" which I flashed directly via flashtools with the phone in fastboot mode with the command "fastboot flash boot xxxxxx.elf". And although I didn't reinstall it after flashing the ROM, I suppose it left something in the recovery partition that caused the bootloop... ?
2) the fact that I didn't flash any "boot.img" at all before installing the ROM... inf fact, I didn't even knew it was necessary !
3) a bad ROM installation procedure : wipe, flash rom, gapps and SuperSU and THEN wiping cache and dalvik, restart
4) all of the above (!)
Anyways, after doing it "the right way", everything seems to work correctly for the moment. After installing the ROM, I followed your recovery tutorial using "openrecovery-twrp-2.8.5.0-LT26i.img", hope I did the right thing this time, hahah. Thank you again for your help !

LegatoExia said:
No, I didn't, I was too afraid of creating another problem xD I just used the phone normally, installed apps from the play store, the last one being nova launcher (but I rebooted a few times after that without any issue)., things like that.
But after applying your tutorials to flash the rom AND the recovery, I think the problems were caused by :
1) a wrong recovery and/or flashing method : previously I used "stock-6.1.A.0.452-twrp-2.4.0.0.elf" which I flashed directly via flashtools with the phone in fastboot mode with the command "fastboot flash boot xxxxxx.elf". And although I didn't reinstall it after flashing the ROM, I suppose it left something in the recovery partition that caused the bootloop... ?
2) the fact that I didn't flash any "boot.img" at all before installing the ROM... inf fact, I didn't even knew it was necessary !
3) a bad ROM installation procedure : wipe, flash rom, gapps and SuperSU and THEN wiping cache and dalvik, restart
4) all of the above (!)
Anyways, after doing it "the right way", everything seems to work correctly for the moment. Thank you again for your help !
Click to expand...
Click to collapse
Glad that it is worked for You. Yes, You did somethings wrong, which caused You bootloop, better explained as below:
1) The "stock-6.1.A.0.452-twrp-2.4.0.0.elf" is the stock kernel of ICS version of Xperia S. So if You flash it with a ROM, Your ROM won't boot.
See, each ROM consist of two main parts, one the kernel and other the is the remaining of ROM(apaps, data etc.) A ROM is compatible only with certain kernels, and if wrong kernel is used with a ROM, the ROM won't boot. This is what You were doing, using a stock kernel on non stock based ROM.
2) This essentially doesn't lead to boot loop. This step needs to be done sometimes if You occur a error while flashing ROM via TWRP sometimes.
3) Yes, this sometimes does cause issue, the procedure is always for a clean flash, -Wipe system, wipe data, wipe cache and wipe dalvik cache. Flash ROM and immediately wipe cache and dalvik cache.

Mirhawk said:
Glad that it is worked for You. Yes, You did somethings wrong, which caused You bootloop, better explained as below:
1) The "stock-6.1.A.0.452-twrp-2.4.0.0.elf" is the stock kernel of ICS version of Xperia S. So if You flash it with a ROM, Your ROM won't boot.
See, each ROM consist of two main parts, one the kernel and other the is the remaining of ROM(apaps, data etc.) A ROM is compatible only with certain kernels, and if wrong kernel is used with a ROM, the ROM won't boot. This is what You were doing, using a stock kernel on non stock based ROM.
2) This essentially doesn't lead to boot loop. This step needs to be done sometimes if You occur a error while flashing ROM via TWRP sometimes.
3) Yes, this sometimes does cause issue, the procedure is always for a clean flash, -Wipe system, wipe data, wipe cache and wipe dalvik cache. Flash ROM and immediately wipe cache and dalvik cache.
Click to expand...
Click to collapse
Okay, now I understand ! There are so many roms, kernels and things like that on the internet, it was quite confusing...
Thanks again good sir, your help was a precious time saver =D

LegatoExia said:
Okay, now I understand ! There are so many roms, kernels and things like that on the internet, it was quite confusing...
Thanks again good sir, your help was a precious time saver =D
Click to expand...
Click to collapse
can you please tell me how did you get out of the boot loop to begin with? i can't do anything...

Frostymoon said:
can you please tell me how did you get out of the boot loop to begin with? i can't do anything...
Click to expand...
Click to collapse
I guess You are on stock firmware and flashed the "stock-6.1.A.0.452-twrp-2.4.0.0.elf" or the twrp.img file via fastboot directly. Flash the DoomKernel from here via flashtool as kernel and it will work with stock and have recovery too. Use the blue coloured "Download Now" button and the extension of file is .elf.

Need help to install custom rom

Hello,
I don't know why my lg g3 phone doesn't want boot on custom rom.
I have the LG G3 d855 model, 16gb memory and here are my procedure to install every custom rom :
1. Flash Stock ROM using LGUP (the version of the firmware is not important but the possibility to root is)
2. Install KingRoot and get root
3. Install AutoREC and enter to the recovery
8. Flash Recovery TWRP 3.1.0-2
9. Reboot to the new recovery
10. ADVANCED WIPE (wipe cache, dalvik cache, data and SYSTEM)
11. Flash baseband 21C
12. Flash CUSTOM rom
13. Wipe cache and dalvik cache
14. Flash Gapp
15. Wipe cache and dalvik cache
16. Reboot
I think I did nothing bad...
but the phone does not start and it stays at the initial logo screen (not the LG logo, but the custom rom logo). I waited over 10 minutes to boot but nothing. Even though I install the identical rom again or install an anoter rom, each time the same issue.
This happens with all custom rom (xenonhd, resurrection remix, and now lineageOS)
I can use and boot on stock rom but each time I want to install a custom rom, my phone doesn't want to boot. The phone display stays at the initial rom logo screen.
It seems that I am alone to have this problem.
I don't know why and I search everywhere to find out the solution...
PS : My phone never restart by itself. I never have bootloop with my phone when I using stock rom and same with custom rom..
The problem is the boot with a custom rom. The phone don't want to boot and stay on logo loading...
Any suggestion may be help.
Thank you.

1. Once you installed TWRP you don't have to go back to stock to switch roms. From then on you can just download zips and flash them.
2. You need to delete everything (including system) except internal and external storage ( so you can still flash the zip for xceed, otherwise you will delete it). Remember that you will lose all your apps including your data with it. You can backup them with titanium backup tho. Pictures and video's will still be there as they are stored on the internal or external storage.
3. You also need to flash the GAPPS package after flashing rom, for xceed (7.1.1), pick nano (ARM)
4. Wipe cache and dalvik after flashing and reboot.
5. Make a backup before you do so !!!!!!
Good luck.

Jornwitt said:
1. Once you installed TWRP you don't have to go back to stock to switch roms. From then on you can just download zips and flash them.
2. You need to delete everything (including system) except internal and external storage ( so you can still flash the zip for xceed, otherwise you will delete it). Remember that you will lose all your apps including your data with it. You can backup them with titanium backup tho. Pictures and video's will still be there as they are stored on the internal or external storage.
3. You also need to flash the GAPPS package after flashing rom, for xceed (7.1.1), pick nano (ARM)
4. Wipe cache and dalvik after flashing and reboot.
5. Make a backup before you do so !!!!!!
Good luck.
Click to expand...
Click to collapse
Hello,
1. I think that but with specific rom, some people tell us to flash stock rom before flashing a custom rom. eMMC bug related ?
2. Deleting the system changes nothing because the system is wiped when I flash the rom, right ?
3. if the rom boot first then I will install Gapps. Else, I don’t install because the rom doesn’t want to boot.

1. Well .. I've been switching between fulmics,xceed,rr, .. etc without any problem so no, there is no need to go back to stock everytime.
2. Try it, you won't be able to boot until you flash a new rom, but it could help. That's why you take a backup in the first place. It is more 'clean' and if you don't try it you won't know.
3. Sometimes you have to flash gapps directly after the rom or you will be in for a bad time if you do afterwards.
Once you have TWRP recovery installed it's the easiest thing ever to flash a new rom. Make sure your zip files are downloaded okay. Download the MD3 to check it. Try to download via MEGA app or so, because browsers downloads tend to have errors sometimes.
Apart from that. Don't root via kingroot. They have had some suspicious cases where malware was installed on the phone when rooting.
If nothing's works. Go back to full stock through KDZ, root wit your PC, install TWRP via autorec, go to recovery, wipe everything, install modem 21C, install rom and gapps, wipe cache, reboot. Don't try anything other than that.

I have the same problem

Jornwitt said:
1. Well .. I've been switching between fulmics,xceed,rr, .. etc without any problem so no, there is no need to go back to stock everytime.
2. Try it, you won't be able to boot until you flash a new rom, but it could help. That's why you take a backup in the first place. It is more 'clean' and if you don't try it you won't know.
3. Sometimes you have to flash gapps directly after the rom or you will be in for a bad time if you do afterwards.
Once you have TWRP recovery installed it's the easiest thing ever to flash a new rom. Make sure your zip files are downloaded okay. Download the MD3 to check it. Try to download via MEGA app or so, because browsers downloads tend to have errors sometimes.
Apart from that. Don't root via kingroot. They have had some suspicious cases where malware was installed on the phone when rooting.
If nothing's works. Go back to full stock through KDZ, root wit your PC, install TWRP via autorec, go to recovery, wipe everything, install modem 21C, install rom and gapps, wipe cache, reboot. Don't try anything other than that.
Click to expand...
Click to collapse
Hello,
I have a question.
Can you give me a gapp 100% compatible with all custom rom with android 7.1.2, because i think opengapp are not reliable. Maybe the gapp will cause my issue and the rom won't boot.
Can i use this one https://forum.xda-developers.com/on...isited-slim-gapps-6-0-7-0-unofficial-t3462088 ?
I always use PICO version of gapp
Thank

How to revery back to stock rom?

Now I am on custom rom, what to do to flash stock rom? just flash zip file in TWRP? or should I flash stock TWRP or what?

You got some options:
But first a heads-up: you will lose all your data.
Zip-flash method:
Copy the stock rom flashable zip to your micro sd. Make sure you got the flashable zip! To be flashed in twrp.!
Boot to twrp.
Factory reset
Then wipe system partition
Now flash the zip.
Wipe dalvik and cache.
Reboot
Enjoy
Fastboot method: (will surely wipe everything)
Search for team one rescue firmware on our XDA.
Download the firmware package.
Boot your phone into bootloader.
Connect your phone to your PC.
Make sure you got your backup to your PC. Or micro SD.
Extract the firmware package and start
Flash-all stock recovery.bat
Or a name similar.
Wait until the phone reboots in its own, and DO NOT , disconnect the phone while in process of flashing.
Once the the Google setup is visible, you can safely disconnect your phone.
You should be back on marshmallow stock rom.
Do some ota updates. Enjoy,

sm00th4f3 said:
You got some options:
But first a heads-up: you will lose all your data.
Zip-flash method:
Copy the stock rom flashable zip to your micro sd. Make sure you got the flashable zip! To be flashed in twrp.!
Boot to twrp.
Factory reset
Then wipe system partition
Now flash the zip.
Wipe dalvik and cache.
Reboot
Enjoy
Fastboot method: (will surely wipe everything)
Search for team one rescue firmware on our XDA.
Download the firmware package.
Boot your phone into bootloader.
Connect your phone to your PC.
Make sure you got your backup to your PC. Or micro SD.
Extract the firmware package and start
Flash-all stock recovery.bat
Or a name similar.
Wait until the phone reboots in its own, and DO NOT , disconnect the phone while in process of flashing.
Once the the Google setup is visible, you can safely disconnect your phone.
You should be back on marshmallow stock rom.
Do some ota updates. Enjoy,
Click to expand...
Click to collapse
Now I have custom TWRP and a custom rom, I will choose Zip-flash method.
Can I flash stock rom with this custom TWRP? I mean can I flash stock rom like custom ones via twrp?
Can I flash custom rom later after installing stock rom?

Egyptiandroid said:
Now I have custom TWRP and a custom rom, I will choose Zip-flash method.
Can I flash stock rom with this custom TWRP? I mean can I flash stock rom like custom ones via twrp?
Can I flash custom rom later after installing stock rom?
Click to expand...
Click to collapse
For starters, twrp is a custom recovery, so you don't have to put the word "custom" before twrp everytime you mention it. X)
There are flashable zips that contain the stock rom. So, in a sense, yes, but you can't do any ota updates.
Download any needed file before beginning to flash a new rom:
Custom Rom, Gapps and if you want root: Magisk or SuperSu. Put those files on your micro SD in your phone.
Create a backup in twrp. You Just have to slide from left to right, no need to select anything more than what is already selected from the start.
Before installing a custom rom, you have to always wipe system, data, dalvik and cache partition in twrp recovery.
Only then you can flash the stock rom, which can be downloaded in one of the threads here in our XDA Lenovo p2 forum.
Little need to know: before flashing any rom, do a factory reset in twrp and wipe system partition.
Be aware that by deleting the four partitions you will lose your app data, sms,call log and so on.
Internal storage however isn't affected, so your music und Pictures won't be deleted.

sm00th4f3 said:
For starters, twrp is a custom recovery, so you don't have to put the word "custom" before twrp everytime you mention it. X)
There are flashable zips that contain the stock rom. So, in a sense, yes, but you can't do any ota updates.
Download any needed file before beginning to flash a new rom:
Custom Rom, Gapps and if you want root: Magisk or SuperSu. Put those files on your micro SD in your phone.
Create a backup in twrp. You Just have to slide from left to right, no need to select anything more than what is already selected from the start.
Before installing a custom rom, you have to always wipe system, data, dalvik and cache partition in twrp recovery.
Only then you can flash the stock rom, which can be downloaded in one of the threads here in our XDA Lenovo p2 forum.
Little need to know: before flashing any rom, do a factory reset in twrp and wipe system partition.
Be aware that by deleting the four partitions you will lose your app data, sms,call log and so on.
Internal storage however isn't affected, so your music und Pictures won't be deleted.
Click to expand...
Click to collapse
Thanks for your detailed answer I am now on custom rom, i will download stock rom from the sticky thread, although all links are dead but I will try to find a working link
BTW, what is the latest stock rom?

I think S251 ...i'm not sure though. It shiuld be the one with the highest number=latest version ?
I still think that custom roms are better than stock though but do what you think is right.