Custom Kernel Installation Problem - Xiaomi Redmi 2 Questions & Answers

As title says, I have problem recently about installing custom kernel. The option upon installing is not applied. Then cpu constantly at lower frequency etc.
It was fine back then when the phone still new and getting into my first custom ROM.
Any idea what's causing it? Formatting internal doesn't do a thing.

Related

[Q] Franco kernel r17 on CM11 M10 causes crashes

Hey,
I was looking for another kernel for my pretty new nexus 10 and i wanted to try franko kernel, i knew it already from other devices.
Well, I flashed the zip, no problem, and rebooted the tablet.
Even before I was able to unlock the screen, the first message appeared which told me that "com.android.phone" crashed.
It kept showing up, so that i had problems to reboot or shutdown my tablet properly.
I already tried to disable xposed framework, with no effect.
I chose to create a new thread, because i'm not (yet) allowed to post into this one
Repack the kernel with the ramdisk of your rom. I think it should do it

[Q] KitKat to Lollipop - the phone is unusable (huge battery drain and sys errors)

Hi everyone,
Until recently I've been using a KitKat based ROM and I was pretty OK with how my NOTE 3 SM-9005 was performing. However, a few days ago I decided to try a Lollipop based ROM and the problems started. I had similar problems with 3 different ROMs with great reviews. My battery went, for example, from 100% to 15% in ONE HOUR while streaming from YouTube. It never did that before. Also, It sometimes gives a "system stopped responding" error or something like that (it's like the equivalent of explorer.exe crashing on Windows) and after a few seconds it starts working again. Other system apps crash as well every now and then and sometimes the phone just decides to restart by itself.
I initially used Philz recovery and after the initial errors I switched to TWRP and started from scratch. I completely wiped my system internal space before flashing and, of course, I wiped dalvik cache and cache before and after flashing the ROM. I only used recommended gapps. Also, I did not restore any system apps. I started from scratch after the installation and the problem is the same.
To be more exact, I tries flashing so far the following ROMS, experiencing more or less the same problems on each:
temasek's UNOFFICIAL CM12.1
AryaMod V5.4 TW Lollipop Official BOB6
BlissPop 3.5 Unofficial
I also tried the Dirty Unicorns v9.4 ROM from the Original Android Development section but this one went on a reboot loop initially after the first restart so it never really even installed.
At this point I believe I might have done something that I should't have, but it seems strange because this is not the first time I am flashing a new ROM and I never had problems in the past. Also, my NOTE 3 SM-9500 did not have any problem on my previous KitKat ROM. Did I miss something? Should I have used another kernel? If I understood correctly, the ROMs come with a recommended kernel already. If this is not the problem, what could it be? Should I have done any additional thing before flashing a Lolipop ROM after using a KitKat ROM?
I now installed an app for trying to find out what exactly drains my battery but this is not the only problem. The system itself is really unstable.
I would really appreciate some help, suggestions, or opinions. I really don't know what else should I be doing at this point.
Thanks a lot!
Apparently is the media server eating all that battery (currently 68%).
I will format the SD card hoping this fixes the issue.....but could this have something to do with the system error and, sometimes, restarts?
Well I really don't know what to say! A lot of people report battery problems on 5.0 just because they didn't wipe the phone while coming from KK! But you did, so that's no go. Battery life on LP is much better than KK for me, at least 20% better if not more. And I didn't face any system crashing issues either! Don't really know what's going on with you mate.
Someone suggested that maybe I shoud update the bootloader and modem to a Lollipop version but I really couldn't find any info on how to do that.
Formatting the SD card just slightly reduced the battery drain. The phone is still discharging like crazy. Any suggestion on how to update the bootloader and modem?
Thank you.

OP2 kernel problems, considering H2OS?

Hi all, I am new here. I was referred by a friend who knows more about this than I do. I think I understand how to get fastboot and TWRP, so that is taken care of already. Now the problem with my OP2 running OxygenOS latest version, everything stock, is that it freezes up after unlocking, and the whole phone is just terribly throttled at this slow speed for a long time. All inputs are extremely delayed, and touchscreen is nearly unusable after the lag begins. There are so far two temporary fixes I found: 1) reboot phone 2)wait it out/keep unlocking until it doesn't lag. I also have been unable to make a copy of my internal storage via USB, as it gives unspecified error during copying. And lastly, the screen dims on its own sometimes at random while anything related to auto-brightness should be off. Fortunately, I was able to make a hard copy of my internal storage thru some wifi file manager apps. Now my friend pointed out that my phone's issues could be related to a bad kernel. To remedy this, he told me it would be good to flash a new kernel onto my phone. I considered changing roms to CM, but apparently a lot of functionality is lost when doing this. He told me that I could retain Oxygen OS while flashing a new kernel, but I am not sure how to do this. I came across a post in the android dev section regarding hydrogen os, and I read that it performs better than Oxygen OS, but has minor issues of its own. I am interested in flashing this rom/kernel (I am not sure which is which). Here is the link in that section of the forum I found http://forum.xda-developers.com/oneplus-2/development/rom-h2os-hydrogen-os-ota-clean-stable-t3195636. I see it says that it is working on Indian OP2, and running stock rom and stock kernel. Does this mean that my north american OP2 won't be able to get this rom? Also if it is the stock kernel, does that mean it is the same kernel as the one currently installed on my phone? Anyways, if anyone knows about my phone's problems, or has a way to fix it let me hear it please. Thank you!
Tzheng456 said:
Hi all, I am new here. I was referred by a friend who knows more about this than I do. I think I understand how to get fastboot and TWRP, so that is taken care of already. Now the problem with my OP2 running OxygenOS latest version, everything stock, is that it freezes up after unlocking, and the whole phone is just terribly throttled at this slow speed for a long time. All inputs are extremely delayed, and touchscreen is nearly unusable after the lag begins. There are so far two temporary fixes I found: 1) reboot phone 2)wait it out/keep unlocking until it doesn't lag. I also have been unable to make a copy of my internal storage via USB, as it gives unspecified error during copying. And lastly, the screen dims on its own sometimes at random while anything related to auto-brightness should be off. Fortunately, I was able to make a hard copy of my internal storage thru some wifi file manager apps. Now my friend pointed out that my phone's issues could be related to a bad kernel. To remedy this, he told me it would be good to flash a new kernel onto my phone. I considered changing roms to CM, but apparently a lot of functionality is lost when doing this. He told me that I could retain Oxygen OS while flashing a new kernel, but I am not sure how to do this. I came across a post in the android dev section regarding hydrogen os, and I read that it performs better than Oxygen OS, but has minor issues of its own. I am interested in flashing this rom/kernel (I am not sure which is which). Here is the link in that section of the forum I found http://forum.xda-developers.com/oneplus-2/development/rom-h2os-hydrogen-os-ota-clean-stable-t3195636. I see it says that it is working on Indian OP2, and running stock rom and stock kernel. Does this mean that my north american OP2 won't be able to get this rom? Also if it is the stock kernel, does that mean it is the same kernel as the one currently installed on my phone? Anyways, if anyone knows about my phone's problems, or has a way to fix it let me hear it please. Thank you!
Click to expand...
Click to collapse
I had the same issue with O2. I changed kernels and the problems persisted. A also word the device and started from scratch through fastboot and the issues persisted. I ended up on hydrogen and I've never looked back. There is a flashable zip in that thread for the newest full version .11. Follow the steps wipe everything besides internal storage, flash the full v11 zip and boot the phone. After this reboot to recovery (power and volume down). Flash the gapps and super su zip if you want root. After this you should be able to add your Google account and be good to go. One thing I did was remove all Chinese apps and the stock launcher. I use trebuchet launcher from cm 12.1. Phone runs incredibly smooth now. I recently started running AK kernel as well. The oxygen version works with hydrogen. I have been averaging between 5 and 7 hours of SOT for battery with up to 8 if I'm just watching videos. Hope this helps. The ROM is a little simpler and the notifications settings are different. But you can set apps to have priority notifications and they function similar to oxygens notifications at that point. Everything is in the thread if you have any questions I'll try to help you.

Apps crashing with custom kernels

I have two apps which crashes when I am not running stock kernel. I tried installing a custom rom and they crashed. So I started from scratch with stock Nougat and applied mods one at a time until I could reproduce the crash.
When I flashed a custom kernel the apps started to crash again, and did not open. Obviously they check the kernel when they launch.
I have tried Superstock, Superkernel, Apollo and TGPKernel. My two apps won't launch with any of them.
Are there any way around this?
Is there any way I can reflash stock kernel now, as a last remedy?
I would like to use Magisk, but as I have found out, it doesn't seem to work on stock kernel, that is way I would like a custom kernel.

slow reaction, booting and recovery - issue

Hi
I have a problem with my op2. At some point it got very slow in reaction. That happens everywhere in the system when phone is running, in recovery mode and during booting.
When that happened I was using cyanogen with some kernel on TWRPl. However I never changed any CPU or GPU settings like frequencies or so. I installed kernel just see what settings does it have..
After that I tried few different configurations.. Oxygen on stock recovery, cm on stock, or each of them on TWRP. Always same issue..
At the moment I installed the freshest oxygen from oneplus website on TWRP. also I have kernel just tk see if temperatures and CPU and GPU speeds are fine. I can see any issue there.
I would like to ask if anyone had this issue and maybe someone will know how to fix it.
I am considering buying new logic (main/mother) board but first I want to know of there is any wat to fix it through ADB or any other" software way".
I'm attaching the movie with how my phone works
/watch?v=RpXaeEbsUOw
i removed youtube link as cannot insert whole link
Thanks

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