Develop Bugs

do you need to wipe cache before you upgrade rom kernal modem

do you need to wipe cache before you upgrade rom// kernal //modems all the time thanks

It depends, everything in the dev section has directions, follow them and you will be good.

larrynypd said:
do you need to wipe cache before you upgrade rom// kernal //modems all the time thanks
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I would to be safe. Take that extra step for security.
Sent from my SPH-D710 using XDA

I always wipe with a ruj format all before I flash a new rom.. But as far as flashing modems and kernels I never wiped cache and had an issue.. But it won't hurt to wipe it before you flash a new kernel or modem
- Sent From My Blu Kuban Themed Tapatalk Like A Boss

In fact some roms have issues when you wipe before a flash, take captainmorgan's miui port as an example, some of us had nothing but issues related to wiping everything first lol, its hit or miss on that so most definitely check the op for all your flashing info needs
sent from my SGS2 running AOKP, eh...

Venomusdragon said:
In fact some roms have issues when you wipe before a flash, take captainmorgan's miui port as an example, some of us had nothing but issues related to wiping everything first lol, its hit or miss on that so most definitely check the op for all your flashing info needs
sent from my SGS2 running AOKP, eh...
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agat cwm said its safe to use with ics ff18 but when i do a wipe the only thing that comes up is to wipe cache partition no other choices is that ok
also is it safe with agat cwm to use the wipe data/factory reset with the brick stuff thanks

Modems no, kernels always.
Sent from my SPH-D710 using xda app-developers app

dante32278 said:
Modems no, kernels always.
Sent from my SPH-D710 using xda app-developers app
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Correct. Always flash cashe and dalvik before flashing a kernel. Modem no. Just update prl and profile and you're good.

problems flashing roms, big problems.

I don't know what caused it... but no matter what rom I flash it seems that it always gets through the bootup screens and then gets stuck on the samsung screen, and won't load into a custom rom. It seems like something happened to my system and I have tried everything and nothing it working. I can only run with the stock rom it came with and thats it.
I have no clue whats going on. When I flash from ROM to ROM I take these steps.
1- put rom on SD card
2- nandroid
3- factory wipe from recovery
4- wipe cache
5- wipe dalvik
6- flash rom
7- flash gapps (if on AOSP based)
8- reboot.
I have went back to stock via odin, then reflashed via odin, repushed the recovery, basically started from scratch and nothing is letting me install a new rom. Wasn't really having any problems until today... any ideas? :crying::crying::crying::crying::crying:
edit- I was thinking, I did ALOT of debloating at the beginning using the aroma debloater, and did some minor debloating myself.. I wouldn't think this would have anything to do with a new rom because when I wipe everything it does a fresh install of everything... So I am stuck.

3.5- mounts and storage > format system
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theROMinator said:
3.5- mounts and storage > format system
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
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should this be done everytime?

Optimizer said:
should this be done everytime?
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Yes. Although if you're updating a rom i.e. cm or aokp a cache/dalvik cache wipe will do (unless stated otherwise).
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

theROMinator said:
Yes. Although if you're updating a rom i.e. cm or aokp a cache/dalvik cache wipe will do (unless stated otherwise).
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
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see my main thing was everyone was talking about how if I was going from a modded stock rom to a modded stock rom there would not need anything except cache wipes... and i still get hung..:/

I recommended backing up all of your data, do a factory reset, then go back to stock with an Odin package from development. From there you can root or whatever you please.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

Nandroid Restore Help

I'm new to Samsung Android phones, and new to the E4GT, so I need a little help.
I always flash the zip for the EL26 CWM5 recovery like instructed, soooo, here is my issue.
I'm running AOSP and thought I would try CM10 JB, soooo, I flashed into EL26, performed a full nandroid to my Ext SD. I flashed JB and gave it a shot. For issues known to all, I wanted to switch back
So, I went into recovery, flashed the EL26 recovery and rebooted recovery, I then restore the nandroid backup I just made, rebooted, went to the Samsung screen (with the yellow !). After some time, about 20-30 seconds, it goes to a black screen indefinately until I pull the battery.
Any ideas? I have yet to get a nandroid to work on this device. Had no issues at all on my 3D. I'm sure I'm doing something wrong.
TIA,
Tee Jay

You need to flash the AOSP kernel. Well first can you boot into recovery or download mode
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g_ding84 said:
You need to flash the AOSP kernel. Well first can you boot into recovery or download mode
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Yeah I can get into recovery fine, so I flashed an AOSP kernel and then my wifi didn't work.

Is it not connecting?
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g_ding84 said:
Is it not connecting?
Sent from my SPH-D710 using XDA
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Nope, won't even turn on. But if I do a full clean flash of the exact ROM, it works fine.

I'm by far no expert but I'd say the kernel is being replaced by the gb recovery kernel when you flash back for your safe recovery.I personally keep a couple various recoveries so I can nandroid backup on the kernel native to the Rom and then the backup will contain the proper kernel.I think I got that right.so....nandroid b4 recovery has been my habit.

Had this issue before, minus the yellow triangle....anytime you're on an aosp rom and do a nand via el26, the nand stores the last kernel used (which is GB el26). After you restore, wipe cache and dalvik and then flash an aosp kernel, probly one from chris41g. Reboot and should he good to go.
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dante32278 said:
Had this issue before, minus the yellow triangle....anytime you're on an aosp rom and do a nand via el26, the nand stores the last kernel used (which is GB el26). After you restore, wipe cache and dalvik and then flash an aosp kernel, probly one from chris41g. Reboot and should he good to go.
Sent from my SPH-D710 using xda app-developers app
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Right, I tried that with my AOKP backup, I was able to boot. But then my WiFi wasn't working because of something to do with the Kernel I'm assuming

Phone will not boot any kernel. WHY?

First a little background. I am not new to the android world whatsoever. I don't post much but have been lurking for years. I had a Verizon GS3 and just recently switched to T-Mobile a few days ago and obviously bought a T-Mobile GS3. My vzw phone had no problems. But for some reason my T-Mobile phone will not boot any kernel I try to flash. Roms flash fine but when I flash a kernel everything goes fine in recovery but my phone won't boot past the splash and I end up having to restore a backup. I know I'm flashing the right kernels. I am on touchwiz based ROMs and haven't tried any aosp Rom because for the first time ever I actually prefer an OEM skin to aosp. So basically am I missing something obvious. Anyone else having thus problem. On Verizon I had to root and unlock the bootlosder. From what I understand tmobiles bootliader was not locked down and all I had to do was root. Like I said. I've tried every touch wiz Rom and every touch wiz kernel with each Rom and none will boot past the splash screen. I always wipe dalvik and cache but even tried wiping data every time too and keep getting the same result. Any input would be appreciated. . Thanks in advance.
Sent from my SGH-T999 using xda premium

Shouldn't need to do any wiping of any kind. I only use AOSP/AOKP, though. May I ask why you even bother with custom kernels? They honestly seem like a waste of time to me.

Im just flash happy. Like to try them out. I've been on Verizon for many Years and am used to the developers over there. I'm still getting used to the devs over here. Don't know any of there work. I'm sure its all good though. Been using imoseyons lean kernel since the thunderbolt back in the day and have stuck with them. Just my personal preference. I'd like to try some of tmobolrs kernel devs work but like I said I can't get a single one to boot.
Sent from my SGH-T999 using xda premium

What kernels have you tried to flash? There are a couple that have ICS builds. Also, what version of CWM are you using?

I've tried all the tw kernels. Every single one with 2 different ICS tw ROMs. I'm not using the leaked jb tw. I'm stickung with the more stable ICS ROMs for now. I just don't understand. I've tried every one. I've been flashing a long time and don't get it. Im kinda new to Samsung though. First Samsung was the galaxy nexus. Didn't ever use Odin with it. Does anyone flash kernels with Odin. Maybe I should try that. And to answer your question I've tried twrp and the latest version of cwm from rom manager. And of course I'm using the ICS TW version of the kernels im trying.
Sent from my SGH-T999 using xda premium

It could just be your phone doesn't like them. There is another guy on CM10 and AOKP that can't get custom kernels to boot either.
Sent from my Nexus 7 using Tapatalk 2

The kernel source code was never released for any build from UVALH2 and beyond. So most of our kernels will only work with UVALEM and UVALG1 builds.
We got kind of lucky I think and ktoonsez att kernel was brought over and works. I think there's one or two others that work now too.
As far as described here go I think we've got some of the best! For an outstanding rom you should try FreeGS3. It works with most of the kernels and is an awesome stable rom. If you want a later build try wildcards XquiziT v70 based on UVALH2. Use ktoonsez kernel with it.
And just to note, the stock kernel is surprisingly good. So give it a fair shot as well. Though I can definitely see some potential advantages of custom ones as well.
Sent from my SGH-T999 using xda app-developers app

Thanks for all the info. But now I can't even get any other ROMs to boot. I don't get it. I keep having to restore my Xquizit v20 back up. Its driving me nuts
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jasonpantuliano said:
Thanks for all the info. But now I can't even get any other ROMs to boot. I don't get it. I keep having to restore my Xquizit v20 back up. Its driving me nuts
Sent from my SGH-T999 using xda premium
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Have you done full Wiping?
Wipe Data/Factory Settings
Wipe cache and dalvik
Flash Rom
Fix Permission
Reboot and don't touch it for 10 minutes
Reboot.
Wipe cache and dalvik
Flash Kernel (Must be compatible with ROM)
Fix Permission
Reboot and don't touch it for 10 minutes
Reboot.
See if this will work. Sometimes you have to let it breathe so it can adjust itself.

Have you tried uding odin to flash MrRobinsons root66 UVALH2? This will take you to fresh full stock plus root. Then try roms again.
Sent from my SGH-T999 using xda app-developers app

Whatever you do................
Be sure to double check before you flash that kernel. Had my first SGS3 for 12 days before hard brick set in. Terrible disease it is.......! I had to adopt a replacement shortly after to cope with the pain of the loss. Back on my feet again now though and soarin' higher than giraffe vagina on the things I learned in my days off for mourning. I can tell ya I've personally flashed the lean kernel and kt-747 with no issues. My problems were with siya mainly.

Guys, I have a serious problem.
It's similar to the one of the thread-opener.
The diference is that I cant get ANY ROM to boot, WITH the stock kernel.
And i do like the guide says: wipe/factory reset, wipe chache, wipe dalvik cache and then flash the ROM.
Everything works fine til the ROM finished flasing and runs a reboot.
My S3 shuts down screen, then turns screen on with the "Samsung Galaxy SIII-GT-I9300" and then thats it!
All i can do is to go in download mode or recovery mode. I can also flash CWM and so on, but after flashing ROMs it won't boot!
Is it possible that i broke the device by formating internal sd-card with the stock recovery tool?
Did it, after I tried to install Wickedv6 ROM and after both times when it rebooted it just reinstalled stock ROM. So i thought, ok delete the internal sd-card, so no stock ROM on it any more.
Also tried this ROM: http://forum.xda-developers.com/showthread.php?t=1875923
Same problem.
Also tried to fix the problem by rooting and then flashing ROM. No help.
Please help guys!
Best regards

ke-ironman said:
Guys, I have a serious problem.
It's similar to the one of the thread-opener.
The diference is that I cant get ANY ROM to boot, WITH the stock kernel.
And i do like the guide says: wipe/factory reset, wipe chache, wipe dalvik cache and then flash the ROM.
Everything works fine til the ROM finished flasing and runs a reboot.
My S3 shuts down screen, then turns screen on with the "Samsung Galaxy SIII-GT-I9300" and then thats it!
All i can do is to go in download mode or recovery mode. I can also flash CWM and so on, but after flashing ROMs it won't boot!
Is it possible that i broke the device by formating internal sd-card with the stock recovery tool?
Did it, after I tried to install Wickedv6 ROM and after both times when it rebooted it just reinstalled stock ROM. So i thought, ok delete the internal sd-card, so no stock ROM on it any more.
Also tried this ROM: http://forum.xda-developers.com/showthread.php?t=1875923
Same problem.
Also tried to fix the problem by rooting and then flashing ROM. No help.
Please help guys!
Best regards
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This isn't the I9300 forum, but if you flashed a T999 rom, you bricked your phone.

Aerowinder said:
This isn't the I9300 forum, but if you flashed a T999 rom, you bricked your phone.
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Wow, you scared the **** out of me
But i just tried to flash stock ROM: http://forum.xda-developers.com/showthread.php?t=1646610
It worked out!
What is the right forum for my GT-I9300 to post then?
And why isn't any other ROM working?

The forum you got that stock rom from is the international one. This is the US Tmobile T999 forum. The two phones are NOT compatible.
Only flash, well...anything, from that forum. Our roms will brick yours and vice versa.
Sent from my SGH-T999 using xda app-developers app

[Q] Doing something wrong trying to flash JB

I've installed ROMs before so I'm not a complete noob, but I'm clearly doing something wrong and would like some help.
I've tried installing 3 different JB ROMs (Kobridge tweaked FL04, Jellyverse0.3, JB Black Bean) and everytime I boot up into the Sprint animation and it hangs every single time at the big 4G. I'm coming from BluKuban which I return to every time after flashing EL29 direct boot through pc Odin.
This is what I've been doing:
Installed EL29 direct boot or EL26 stock
cleared cache, davlik and run Format_All_X2
Installed JB modem
installed ROM
run Format All X2 again
A couple of files might be different depending on the ROM instructions, but that's what I've been doing.
Any ideas what I'm doing wrong?

flamand said:
I've installed ROMs before so I'm not a complete noob, but I'm clearly doing something wrong and would like some help.
I've tried installing 3 different JB ROMs (Kobridge tweaked FL04, Jellyverse0.3, JB Black Bean) and everytime I boot up into the Sprint animation and it hangs every single time at the big 4G. I'm coming from BluKuban which I return to every time after flashing EL29 direct boot through pc Odin.
This is what I've been doing:
Installed EL29 direct boot or EL26 stock
cleared cache, davlik and run Format_All_X2
Installed JB modem
installed ROM
run Format All X2 again
A couple of files might be different depending on the ROM instructions, but that's what I've been doing.
Any ideas what I'm doing wrong?
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Don't flash format all zip after flashing rom zip.
You are wiping system right after flashing rom so there is no system and thus you don't boot.
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Thanks for the suggestion, but format_all_x2.zip just wipes data, cache and dalvik, doesn't it? I use it all the time when reflashing Ruj's BluKuban.
BluesRulez said:
Don't flash format all zip after flashing rom zip.
You are wiping system right after flashing rom so there is no system and thus you don't boot.
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flamand said:
Thanks for the suggestion, but format_all_x2.zip just wipes data, cache and dalvik, doesn't it? I use it all the time when reflashing Ruj's BluKuban.
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It wipes system, not dalvik.

flamand said:
Thanks for the suggestion, but format_all_x2.zip just wipes data, cache and dalvik, doesn't it? I use it all the time when reflashing Ruj's BluKuban.
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Its not a suggestion. Its your FIX. It wipes system. I hope you are not confusing format all x2 zip with modified_format all zip. The modified zip wipes only the caches.
As such there is NO need to wipe after flashing the ROM..

Are you following the directions on the OP of each ROM?
If not... do it, that is how you fix your problem.
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Yes I am, unless I'm misunderstanding something. That list is what seemed to be in common to all three.
I'll try to do it again tomorrow when I have a few hours.
Mattix724 said:
Are you following the directions on the OP of each ROM?
If not... do it, that is how you fix your problem.
Sent from my SPH-D710 using xda premium
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