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[Q] Need help with switching between MTD roms

im currently on revival v2 mtd, and im trying to flash cleangb mtd. i think i followed all the correct steps by wiping data/cache, mounting system, installing zip, unmounting system after, and rebooting. i just cant seem to get past the samsung logo. i tried removing the battery and restarting, and i also tried installing the rom again. what am i doing wrong?
edit:
i tried reinstalling it again, and this time it worked.

Flashing won't work unless I wipe data

UPDATE: After completely wiping everything(recovery, ROM, bootloader, etc), and putting it back in with fastboot I no longer have this problem. My recovery probably just got corrupted or something while getting sent over to the device.
Got my Nexus 7 3 days ago, had it unlocked and all that jazz within the hour(thanks to the people who put the stuff together). It's great, but I have a problem with flashing .zip files in recovery. It doesn't matter what type of thing I'm wanting to flash(ex-kernel,rom, or even the uber-simple 720p camera mod), if I don't do a full wipe before flashing, then it just ends up boot looping my device. The boot loop doesn't turn the phone all the way off, just the boot animation. Sometimes the launcher will pop up for half a second and then go back to the boot animation.
For example, whenever I flashed the rasbeanjelly rom, I first flashed that, then rebooted(got excited and forgot about gapps) and checked it out. Remembering about gapps, I went back to recovery and flashed gapps. Then it boot looped the animation. After flashing gapps again(trying different combos of wiping cache/davlik), I flashed the rasbeanjelly rom again, and then gapps immediately afterwards. Still a bootloop. So I did a full wipe(including data this time), sideloaded my .zips, and then it flashed and rasbeanjelly booted up with gapps just fine.
This exact same problem has been happening with every .zip that I try to flash(running TWRP, yes all my stuff is updated). If I want to flash a kernel, I have to flash it when I flash my ROM or else I'll get boot loop. I can't really make any modifications without having to completely wipe my device(which is annoying because I carry a lot of data around on my stuff)
I'm asking if there is a way to flash a .zip without having to completely wipe my device. I'm not a noob to android at all(ROM cooker over at androidforums), but I can't figure it out, I'd love to make stuff for the grouper but this is kind of a big roadblock for me. Logcat isn't helping either. Hopefully I just skimmed over something and it's a simple fix. Thank you for your tips/suggestions/solutions.
EDIT: forgot to mention something. When I flash a new ROM and get it going, I always make a full backup in recovery. If I flash something, and boot loop it, I can't restore it correctly. Recovery says that it restores all good, but it still boot loops(even though I just restored a backup of a non-boot looping system from no more than 5 minutes ago).

If I read your post correctly, you've only tried this on one ROM. Try the same thing on CM10 or PA or whatever you want.

korockinout13 said:
If I read your post correctly, you've only tried this on one ROM. Try the same thing on CM10 or PA or whatever you want.
Click to expand...
Click to collapse
I've actually used several, and it seems to be happening on all of them. I've tried flashing things with PA, CM10, Stock, and RasberryJelly. The kernels I have attempted to flash have been Trinity, Motley, and Franco. All with no success and boot looping me :/

[Q] question: infinite boot image with custom rom

I know it has been asked before, and I have searched the threads. reverting to stock is not a problem.
nexus 7 grouper when installing a custom rom (liquid smooth v2.9 specifically) I get stuck on the liquid boot image.
I have successfully installed v2.7 and am able to revert back to stock or custom.
after a data format, factory reset, and wiping all caches, installing the zip file from abd sideload, or directly from the device the new rom that has flashed will not get past the boot image. am I doing something wrong, or could I do something differently so that the new v2.9 boots up correctly?
I know it has been asked, but the most common answer is to go back to stock. okay, I get that. but I know this rom will run (it is flawless on my s3,) but I cant seem to get it working on the nexus.
thank you.

aircooledbusses said:
I know it has been asked, but the most common answer is to go back to stock. okay, I get that. but I know this rom will run (it is flawless on my s3,) but I cant seem to get it working on the nexus.
Click to expand...
Click to collapse
There have been numerous reports of bootup problems with "clean" LiquidSmooth ROMs in v2.7, 2.8 and 2.9.
Some possible solutions are:
Dirty flash on top of a LS ROM that boots (for instance dirty flash 2.9 on top of 2.7). When doing this you DON'T clear data and cache, but flashes new rom directly, along with gapps and kernel, and boots up. This has worked for some.
Another option when you get stuck on boot screen is to boot into recovery, and do factory reset and clear caches one more time, and try to reboot. It might take several times booting into recovery, and clear data/caches before it boots up, but again this has worked for some.
Finally you could also try the order in which you flash stuff. For instance try ONLY flashing rom, then reboot. If it works, then flash gapps. If it gets stuck, try flashing both rom and gapps in recovery, then reboot etc.
Hope that gives you something to play with! And I'm pretty sure that if you're insistent enough, you will eventually get it to boot! :good:

ameinild said:
There have been numerous reports of bootup problems with "clean" LiquidSmooth ROMs in v2.7, 2.8 and 2.9.
Some possible solutions are:
Dirty flash on top of a LS ROM that boots (for instance dirty flash 2.9 on top of 2.7). When doing this you DON'T clear data and cache, but flashes new rom directly, along with gapps and kernel, and boots up. This has worked for some.
Another option when you get stuck on boot screen is to boot into recovery, and do factory reset and clear caches one more time, and try to reboot. It might take several times booting into recovery, and clear data/caches before it boots up, but again this has worked for some.
Finally you could also try the order in which you flash stuff. For instance try ONLY flashing rom, then reboot. If it works, then flash gapps. If it gets stuck, try flashing both rom and gapps in recovery, then reboot etc.
Hope that gives you something to play with! And I'm pretty sure that if you're insistent enough, you will eventually get it to boot! :good:
Click to expand...
Click to collapse
I will keep trying. getting liquid to run on the fascinate was curious as well, but after a few flashes it took. I'll keep trying on the nexus.
Update: yes, persistence is the key. thanks
What I did was from v2.8 a factory reset, wipe cache and dalvik and flash from sideload
as expected it boot looped. manually booted into fastboot and flashed v2.9 again with only a cache and dalvik wipe.
this time it booted and I flashed gapps.
at the reboot I set up the rom to my liking and it seems to boot normally now.

aircooledbusses said:
at the reboot I set up the rom to my liking and it seems to boot normally now.
Click to expand...
Click to collapse
Yes, after it boots through the first time, I've only seen it boot normal from that point on.

Custom kernel and stutter

In this topic there is CM13 and then a custom kernel for CM. My question is, is that kernel the same one included in CM13? If so, why is it posted? If not, what changes?
I installed CM13, then flashed that kernel and gapps (cleaned cache, data, everything, with TWRP) but for some reason it stuttered a lot. Google play crashed every few moments and the file explrorer couldnt even open. I tried restarting the phone but it didtn change anything.
Then I tried installing exactly the same ROM again and the same gapps but without the custom kernel, and now it doesnt stutter or crash at all.
Could these problems be caused by the custom kernel, if it was different than the stock CM13 one? Or maybe I had just an unlucky flash?
Now that I think this would be an overall question, not just focused in the i8730...

Galaxy A5(2015) restarts again and again.

Hello, i wanted to change frequency bands on galaxy a5 and use this thread:https://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059, after i restart device, it started but after few seconds it restarted automatically, after started and same.
what can i do, if i install stock rom may it back to normal(after hard reset from twrp, and install custom os nothing changed)?

Can someone help?

Clean wiping and installing stock ROM will obviously fix this issue. If you are on a custom ROM, you can try wiping and reinstalling the system partition only which may fix the issue of boot loop.