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What is ParrotMod?
This is a mod to greatly improve the performance of the 2012 Nexus 7, on ANY rooted Android 4.3+ ROM.
It doesn't work on Nougat. I can't fix it, because I don't own this device anymore - I gave it to a friend's little brother.
Feel free to fork it and fix that.
(Got a 2013 Nexus 7? Use this version: http://forum.xda-developers.com/nex...eta-1-parrotmod-improve-2013-nexus-7-t3375928)
Download:
https://parrotgeek.com/dl.php?file=ParrotMod_Universal_2016-08-31.zip
Use this one if the other one doesn't improve the speed: https://parrotgeek.com/dl.php?file=ParrotMod_Universal_2016-10-17.zip
GitHub:
https://github.com/parrotgeek1/ParrotMod_Nexus_7_2012
Feel free to fork/pull request! But always credit me if you make something based on it and tell me in a PM or email.
IMPORTANT NOTE
ParrotMod needs 8MB of free space on the system partition. Don't use huge gapps packages.
ParrotMod requires a recovery that has BusyBox built in. (All versions of TWRP do. CWM does not.)
PLEASE disable IO scheduler/RAM/read ahead tweaks in kernel apps. They override ParrotMod's meticulously optimized settings.
REQUIRES LATEST SUPERSU INSTALLED FIRST https://download.chainfire.eu/supersu-stable
EVEN IF YOUR ROM HAS BUILT IN ROOT LIKE CYANOGENMOD, TURN IT OFF IN SETTINGS, THEN FLASH SUPERSU!!
Does NOT support PHH/MagiskSU, ONLY SUPERSU
If the installer warns you about TRIM on boot being disabled, it's a good idea to schedule TRIM using an app like Trimmer, or just leave your tablet on overnight (on silent) instead of turning it off, so it can automatically trim.
You can tell if ParrotMod is working by checking if the file /sys/block/mmcblk0/queue/read_ahead_kb contains "0", using a root explorer. Do NOT use ROM Toolbox or Root Browser, otherwise you will not be able to see the folders. Use Solid Explorer or FX.
Features:
FLASH MEMORY SPEED INCREASE! up to 4x better performance WITHOUT F2FS OR DYNAMIC FSYNC
Auto trim at boot, but ONLY for Samsung flash storage (it is too slow for Hynix/Kingston)
Uses ext4 but can use data/cache f2fs
Audio stutter and multitasking fix
Miracast enabled (but it freezes on disconnect unless you unplug from the receiver end)
Can set up device without Wi-Fi
Bluetooth 4.0 enabled (BLE/GATT/SMP), CVE vulnerabilities fixed (for 5.x)
More apps open at once (minfree tweak, scheduler tweaks, 64k log buffers, zram optimized)
LCD color fix (no Nvidia smartdimmer/Prism)
Internet optimizations
Can use more storage space before it doesn't let you download things
Survives ROM updates with addon.d
Tethering without carrier checks on 3G Nexus 7
Speed up full disk encryption
GPU optimizations (without OC!) and hardware acceleration properties, decrease GPU RAM usage by 4.4mb per app!
Reverted to dlmalloc for reducing ram usage / ART_USE_HSPACE_COMPACT enabled for better garbage collection [Not on 5.0.x]
Instructions - From unrooted stock 5.1.1
Download the KingRoot apk from here on your tablet, install it, ignore the warnings about the app being unsafe, and tap Root. If it says root failed, try again. It will eventually work.
Install Flashify from the Play Store
Download the latest Universal zip in the download link above on your tablet
Download the SuperSU zip from https://download.chainfire.eu/supersu-stable on your tablet
Open Flashify and install TWRP recovery, the latest version
Open the KingRoot app, tap Menu 3 dots icon, General settings, uninstall KingRoot
Delete the KingRoot and Purify apps
Plug your tablet into a computer! (not even a charger) otherwise it will freeze on the next step. This is a bug in the tablet itself.
Reboot your tablet while holding the power and volume down buttons. If this does not work power on while holding BOTH volume UP and DOWN.
Scroll with volume buttons to Recovery mode and tap power button
You will see a Google screen and then TeamWin logo, just wait
Tap Never show this screen again and Swipe to allow modification
Tap Install
You will see the files on your internal storage, go to Download folder
Tap on ParrotMod_XXXXXXX.zip
Tap add more zips
You will see the files on your internal storage, go to Download folder
Tap on UPDATE-SuperSU-v2.XX.zip
Swipe to confirm flash
When it finishes installing tap Reboot System
Your tablet will reboot
Wait 30 seconds for the device to settle
Enjoy the improved speed! (You can delete ParrotMod_XXXXXXX.zip now)
Extras
Fix for speaker/headphone buzzing while charging: https://parrotgeek.com/dl.php?file=ParrotMod_ChargingNoiseFix.zip
Upgrade notes
It is safe to flash new ParrotMod versions without wiping data.
IF YOU UPGRADE MAJOR ANDROID VERSIONS YOU MUST WIPE SYSTEM, FLASH THE WHOLE ROM, AND REINSTALL PARROTMOD.
UPGRADING ROM BUILDS WORKS FINE! In ROMs with addon.d support, it will even keep ParrotMod installed.
Please don't use with ParrotMod:
L Speed/any other "supercharger" like tweaks. I will ignore any support requests if you use them. Most are very badly programmed/full of placebos.
Disable journaling zip (it conflicts with my script, and doesn't improve performance)
Don't limit background processes, it might even make the tablet SLOWER. As of version 2016-04-30, the installer script removes this setting from build.prop automatically.
Known Bugs
Doesn't work on most Nougat ROMs
Miracast will freeze the tablet on disconnection unless you disconnect from the TV/dongle side. This is a common Tegra issue.
The optimizations to the ART runtime do not work when Xposed is installed, and you will see reduced performance! They also don't work on 4.4.x or 5.0.x.
Recommended Kernel:
https://forum.xda-developers.com/nexus-7/development/kernel-dc-kernel-t3310642
Slow charging hardware fix:
https://forum.xda-developers.com/showthread.php?p=65039448
Credit
Busybox from BSZAospLp ROM LMY49H
libc/libart from i9300 CM14/i9300 CM13/i9300 JustArchi CM12.1 old beta
Charging Noise Fix is based on an apk from the Moto G 2015 stock ROM.
Bluetooth 4.0 libs for 4.3 from https://github.com/manuelnaranjo/AndroidBluetoothLowEnergyEnabler/tree/master/releases
BT4.0 KitKat libs from cm-11-20160509-UNOFFICIAL-grouper by @dookie23
BT4.0 5.x libs from Dreams - version 5.3.9.4 for Maguro
BT4.0 6.x libs from aosp_grouper-ota-eng-20160803.ds.zip by @AndDiSa
BT4.0 7.x libs from cm-14.0-20160924-UNOFFICIAL-i9300.zip by @Taker18
Thanks
Thanks to bangsergio on XDA for testing several dozen beta versions.
Thanks to @nereis for showing me a zram tweak.
How ParrotMod Works
ParrotMod works by trying to counteract the slow flash storage speed, by decreasing unnecessary reads and writes, and also optimizing how well processes share the bandwidth.
To optimize RAM, it also changes minfree values, replaces libart and libc with optimized versions (reverting to the memory allocator that was in 4.4.4), and enables zram (but in a less CPU intensive compression mode).
It also enables GPU clock scaling instead of throttling based on CPU speed, to improve performance in GPU-bound games. It also disables Nvidia PRISM adaptive backlight to fix washed out screen in videos.
It increases the CPU priority of audio players, and the hd-audio0 kernel thread, to fix sound stutter when multitasking.
Finally, it increases wifi transmit power and noise filter in nvram.txt to increase wifi range.
I also made my own patch to enable Miracast.
Looks nice :3 Sounds like a very good ROM for newbies, I'd be happy if you'd do the same ROM with the 3.4 kernel when it comes out and CM13/Android 6.0 AOSP.
KawaiiAurora said:
Looks nice :3 Sounds like a very good ROM for newbies, I'd be happy if you'd do the same ROM with the 3.4 kernel when it comes out and CM13/Android 6.0 AOSP.
Click to expand...
Click to collapse
Maybe if I have beta testers. The Nexus 7 is now in the hands of its (much happier) original owner. Almost all of the mods in this zip except /system/lib and mira4u apk should work M though. Also probably tilapia if you remove the assert in updater script which I will do soon
To make it even simpler for newbies, why not use Wugfresh to root from stock 5.1.1? It's so much easier than your method.
http://www.wugfresh.com/nrt/
Is this a rom or a simple mod to install over stock lollipop, because the downloadable zip only has 13mb?
sroma1980 said:
Is this a rom or a simple mod to install over stock lollipop, because the downloadable zip only has 13mb?
Click to expand...
Click to collapse
It's a mod because my internet is too bad to upload the whole rom. Uploading this takes 7 min
cdnron said:
To make it even simpler for newbies, why not use Wugfresh to root from stock 5.1.1? It's so much easier than your method.
http://www.wugfresh.com/nrt/
Click to expand...
Click to collapse
Doesn't that erase data?
[This post was for a test feature which has been merged into the mod]
well this is my personal experience with this rom
coming from virgin unrooted, locked bootloader, never been into the darkside with my given by best friend nexus 7 (2012 and 16gb)
always OTA updated until 5.1.1
can't stand with lag and everythings else.
a litte bit google and found this thread.
so i factory reset my nexus
download parrot rom (saved in download folder)
download kingroot (saved in download folder too)
install es file manager from playstore, browse to download folder, install kingroot
running kingroot
download super SU
install flashify from play store
running flashify and choose recovery, choose TWRP, download and flash TWRP. after finish press back button
uninstall kingroot and purify
reboot into recovery (power off first. power on while holding BOTH volume UP and DOWN) until boot screen appear. -in firstpost say just power and vol down, well is not working for me. i have to hold both volume keys.
in TWRP recovery backup my current rom (just in case no body knows whatt would happend in the future)
after that select install
select parrot
add super SU
and waitt........
viola everything running smooth as butter. no more delay.
will stay in this rom for now.
just hoping may be in the future just add playstore. so we can download everything else we need and no redundancy.
thank you for your effort making this rom
Ice Zodiac said:
just hoping may be in the future just add playstore. so we can download everything else we need and no redundancy.
Click to expand...
Click to collapse
what? do you mean delete more preloaded google apps? If so, I'm maybe thinking about replacing Play Music with Eleven or Shuttle, and add motorola camera and gallery instead of google photos, and CM12.1 browser & also viper4android
Ice Zodiac said:
thank you for your effort making this rom
Click to expand...
Click to collapse
you're welcome
parrotgeek1 said:
what? do you mean delete more preloaded google apps? If so, I'm maybe thinking about replacing Play Music with Eleven or Shuttle, and add motorola camera and gallery instead of google photos, and CM12.1 browser & also viper4android
Click to expand...
Click to collapse
yes real AOSP with nothing accept play service and play store so if i want play music, i download play music or else i can download power amp. i can cownload google camera or maybe just camera 360.
BTW the slow charging still not fix on my nexus. over night charging only from 18% until 80% (more than 10 hours)
thank you for your effort. i will try to do wipe (factory reset) maybe will comeout differently)
Added to INDEX
This mod has been added to this [INDEX] thread:
[INDEX] Nexus 7 2012 - ROMs, Kernels, MODs, GUIDES [27/01/16]
Ice Zodiac said:
BTW the slow charging still not fix on my nexus. over night charging only from 18% until 80% (more than 10 hours)
thank you for your effort. i will try to do wipe (factory reset) maybe will comeout differently)
Click to expand...
Click to collapse
i couldn't fix it either, it happens to me too
parrotgeek1 said:
i couldn't fix it either, it happens to me too
Click to expand...
Click to collapse
Try to rapitly insert and erase the charger few times. That works for me.
Just a question, it is a mod I can use with any rom ?
I am on Orion rom.
thanks.
Marcovanbasten said:
Just a question, it is a mod I can use with any rom ?
I am on Orion rom.
thanks.
Click to expand...
Click to collapse
Yes, if you open the zip and delete the contents of /system/priv-app and /system/app. Also delete any thing in the updater script that has delete(...) or delete_recursive, and the line in the patch prop.sh that has lmy47v in it. Then rezip
if you use it on marshmallow it will bootloop unless you delete libstagefright_wfd and libMira4U. But then miracast won't work
If your rom has stagefright fixed delete libstagefright_EVERYTHING-BUT-wfd.so and libutils and libcutils
I'm going to make a universal version later, sorry
EDIT: you have to flash SuperSU even if your rom includes built in su
Ice Zodiac said:
yes real AOSP with nothing accept play service and play store so if i want play music, i download play music or else i can download power amp. i can cownload google camera or maybe just camera 360.
BTW the slow charging still not fix on my nexus. over night charging only from 18% until 80% (more than 10 hours)
thank you for your effort. i will try to do wipe (factory reset) maybe will comeout differently)
Click to expand...
Click to collapse
parrotgeek1 said:
i couldn't fix it either, it happens to me too
Click to expand...
Click to collapse
Oajj said:
Try to rapitly insert and erase the charger few times. That works for me.
Click to expand...
Click to collapse
Sorry for OT. I know this issue and I know how to resolve it. It's a problem with the flat cable of the micro USB port. With a little tear down you can resolve the problem. Take off the back cover, screw the speakers and USB board, detach flat cable and put a piece of transparent tape above it in order to make more pressure on pins. Reassemble all the components and take a look if the problem still here
Interesting.
Cam I flash this over my already rooted device from or will I need to start from scratch again.
Sent from my Nexus 7 using Tapatalk
deejayburnout said:
Interesting.
Cam I flash this over my already rooted device from or will I need to start from scratch again.
Sent from my Nexus 7 using Tapatalk
Click to expand...
Click to collapse
You can flash it if you're on rooted stock lmy47v
can i flash this on
this 5.1.1 rom?
http://forum.xda-developers.com/showthread.php?t=2931064
Re: [ROM][F2FS/EXT4][AOSP][BSZAospLp v1.9.5][5.1.1_r30 LMY48Z][SuperSU|BusyBox][16/1/7]
Sent from my Nexus 7 using Tapatalk 2
Hey everyone, I just wanted to make a guide on how to improve your battery life on a custom nougat rom with solid performance and little to no heating issues. I use this method after many trials and errors after I only got 2.5-3hrs of SOT after leaving stock and flashing custom roms. However, after Magisk 14.3 I no longer got the frequent safety issue that plague me for months and I also notice my battery life starting to improve.
Please Note: I have not tested this on marshmallow custom roms or any stock Moto G4/G4 Plus rom (6.0 and above) but feel free to try and let me know if it works. Also this method could be duplicated on other devices.
Disclaimer: I'm not responsible for any bricked or damage device you used my method. I give all credit to the developers who does a fantastic job creating all the things they do for the root community. Thank you!
Follow the following tips if your on a custom nougat rom (Ex: LineageOS, Resurrection Remix, InvictaOS, etc.).
1. Download a custom Nougat (7.0+) rom for your device and go through the initial set up as normal. (I personally use InvictaOS for my device which is very stable). Note: Do not install any root app that modifies system files!
2. Download the following files: Ex kernel , Addon-su- remove-14.1.zip , Magisk 14.3 (1437).zip.
2. Reboot into recovery and install the latest Ex kernel for nougat. This kernel is quite stable and works universally with most custom roms. (It also keeps the phone sightly cooler during heavy usage).
3. Next, flash the addonsu-remove.zip file to remove any traces of root from your room as it will interfere with Magisk which could result in your device randomly rebooting. Afterwards, flash magisk 14.3.zip (This version of magisk pass safetynet on a consistent basis in my experience). You can now reboot your device.
4. Once your back into your phone, launch magisk manager and check if your pass safetynet (which means you did it right) now head to the download section of the app and install the module for "Sysconfig Patcher". A solid tweak improves screen off time by putting the battery hog known as Google Play Service into doze.
This is a bonus step but it's well worth it if you want to maximize battery life:
5A. Buy the official Ex kernel app from the play store. This allows you more power over your kernel settings than the alternatives. Next download the kernel turnables "lightning blade" in addition to our device, this works on allow phones using a snapdragon 617 processor like the G4/G4 Plus. Download the zip file and follow the instructions in the thread very carefully. This will give you much improved screen on time by using less cores unless necessary to maintain a smooth experience. Additionally, It keeps the phone cooler during heavy usage coupled with ex kernel.
5B. Now you can play around with the kernel settings if you like. My personal settings is more gear to my average daily use. Under CPU tab I change my governor turnable to lightning blade from the previous step, under GPU tab I use Simple_ondemand as the gpu governor. Under memory tab, I disable both KSM and KSM Deferred Timer and enable Low Memory Killer. Then under miscellaneous I change TCP to Westwood, increase the i/o schedule read ahead time to 512, and press wake blocks to toggle all three wake blocks. If you want to keep these changes make sure to hit apply on boot for every changes made within the app. You can undo all this to return to ex kernel's stock settings by clearing ex kernel manager's app data and rebooting.
Important: If you follow my steps above you should have better battery life. Try not to install Magisk modules what is not compatible with Magisk 14.0 and above as it may cause your device to randomly reboot and bootloop when powering on.
Please share your battery stats!
adapted for twrp kernel inbuild
https://mega.nz/#!hMxW2Yia!LL42-iYCFFHX2bSwwnI2Ybvigzo3w2ox7wF1q4wau9I
flash rom and gapps
activate navbar in settings/buttons
install vlc video reproduction playstore
Press button power button to exit twrp
Any bugs? Or its the same as the normal one
Shame bugs deleted xposed And substratum add pixel 2 launcher
SammyInTheCity said:
Any bugs? Or its the same as the normal one
Click to expand...
Click to collapse
I had a problem with snapchat's log in
jay_roram said:
I had a problem with snapchat's log in
Click to expand...
Click to collapse
You also would get that with the regular one, I used Titanium Backup and backed up SC and then u can install this rom and use your SC backup, I read online and they say it's because the ROM is rooted (still shows error if root is not on) I tried removing root and exposed (this one doesn't have that anymore) and still didn't work
When i flashed this rom there is no ringtone sound or notification sound please help
Hi there,
The tutorial will show you how to make Viper4Android work on Android 10 and avoid issues like ringtone distortion or no Bluetooth audio.
Please uninstall previous installations of viper or any other audio mod before proceeding to the steps below.
(Updated) Steps:
Download and install BusyBox for NDK from magisk (Don't Reboot)
Download and install Viper from magisk and reboot.
Go to Viper app and install drivers, the device will reboot automatically.
Download and install Audio Compatibility Patch from magisk and do the following:
-Skip audio_policy patching - No and remove (old logic)
-Skip notification_helper - No and remove volume listener library
-Skip usb policy patching for usb dacs - Yes
-Last option - No (recommended)
Reboot and enjoy!
You should have working Viper4Android!
Press the thanks button if I helped!
Dolby install please
heard aml breaks the bt audio
so how to make v4a+ainur work without losing bt audio
i am evox 3
redsun_ravi said:
heard aml breaks the bt audio
so how to make v4a+ainur work without losing bt audio
i am evox 3
Click to expand...
Click to collapse
Not sure about ainur as I only use Viper. You can give the pie fix mentioned in the 1st post a try, see if it works.
Sent from my Redmi K20 Pro using Tapatalk
nabil427 said:
Dolby install please
Click to expand...
Click to collapse
Will give it a try when I get some free time.
Sent from my Redmi K20 Pro using Tapatalk
Will try as well, thanks for the tutorial!
harshs91 said:
...
Now, if you are facing issues like ringtone distortion or no bluetooth audio, please flash the following:
For ringtone/notification sound distortion: Flash Notification Remover Helper.
For no bluetooth audio: Flash Viper Pie Fix v2
Note: After flashing the above fixes, you may be prompted to install drivers by Viper again. You can go ahead and install the drivers again.
Click to expand...
Click to collapse
Sadly flashing "Flash notification remover helper" does not get rid of the distorted system sounds/alarms.
This was the solution for me, no distortion with alarm and bluetooth is working
https://forum.xda-developers.com/k2...tion-x-3-3-t4002669/post81061705#post81061705
norbert.x said:
Sadly flashing "Flash notification remover helper" does not get rid of the distorted system sounds/alarms.
Click to expand...
Click to collapse
Strange. Worked for 2 of my devices. One is K20 Pro, running Evolution X. which rom are you on?
Edit: Notification helper remover has two options. Did you try both? Removing volume listener library worked for me.
franky_z said:
This was the solution for me, no distortion with alarm and bluetooth is working
https://forum.xda-developers.com/k2...tion-x-3-3-t4002669/post81061705#post81061705
Click to expand...
Click to collapse
Looked into this. The audio compatibility patch is a collection of patches mentioned in the original post.
It has a usb audio related patch and the notification helper remover. Would be easier to just flash notification helper remover.
harshs91 said:
Strange. Worked for 2 of my devices. One is K20 Pro, running Evolution X. which rom are you on?
Edit: Notification helper remover has two options. Did you try both? Removing volume listener library worked for me.
Click to expand...
Click to collapse
Not initially, but I did yesterday.
Just removing the volume listener library didn't work. So I removed V4A and started from scratch.
Installed V4A, installed AML, installed the driver, deactivated AML and flashed NHR and removed volume listener library and then installed the driver again :silly: .
Don't know why it's working, but it's working as intended now.
System sounds working, BT working,
even my trouble with some IG stories sounding ok and others being distorted are gone.
Thank you.
norbert.x said:
Not initially, but I did yesterday.
Just removing the volume listener library didn't work. So I removed V4A and started from scratch.
Installed V4A, installed AML, installed the driver, deactivated AML and flashed NHR and removed volume listener library and then installed the driver again :silly: .
Don't know why it's working, but it's working as intended now.
System sounds working, BT working,
even my trouble with some IG stories sounding ok and others being distorted are gone.
Thank you.
Click to expand...
Click to collapse
I know right, the steps are strange but they work.
Anyway, happy to help!
Sent from my Redmi K20 Pro using Tapatalk
I have V4A + ACP + AML working on my 9T Pro running Android 10 with no issues whatsoever. Only had to install Viper, disable AML, install Viper driver, enable AML, install Viper driver and that was all.
I've followed the procedures, didn't work.
Tried all the suggested combos in the thread, didn't work.
Tried all sorts of weird combos, none worked either.
Notification and ringtones still crackles when viper works.
Not working here...On pixel experience 10 . I either end up with stuttering audio or no bt at all.
Sadly does not work for me either on Evox.
Dosent work for me on mi9t pro on EU rom
*Duplicate post*
k3npachi said:
Dosent work for me on mi9t pro on EU rom
Click to expand...
Click to collapse
Android 10?
94burns said:
Sadly does not work for me either on Evox.
Click to expand...
Click to collapse
Strange, worked for me on Evox, android 10.
Phillis said:
Not working here...On pixel experience 10 . I either end up with stuttering audio or no bt at all.
Click to expand...
Click to collapse
gideonlfc said:
I've followed the procedures, didn't work.
Tried all the suggested combos in the thread, didn't work.
Tried all sorts of weird combos, none worked either.
Notification and ringtones still crackles when viper works.
Click to expand...
Click to collapse
Just making sure, are you guys following all the steps exactly on a clean install?
Also, the steps have worked for me on Evox (android 10) and ParanoidAndroid, K20 Pro Indian variant.
Sent from my Redmi K20 Pro using Tapatalk
H4T3M4CH1N3 said:
I have V4A + ACP + AML working on my 9T Pro running Android 10 with no issues whatsoever. Only had to install Viper, disable AML, install Viper driver, enable AML, install Viper driver and that was all.
Click to expand...
Click to collapse
Did you have to reboot at each step?
Hello everyone, I unlocked my phone's bootloader and flashed Pixel Experience ROM. Everything works fine except earpiece when I'm calling someone. I tested the earpiece with some apps from playstore and realized that the volume is very very low when compared to stock rom. I cleaned the grill, flashed another rom (havoc os) but the issue still persists. Naturally, I googled the issue and there were many more mi phones having this issue. It's said that miui 12 may bring a fix for this. I explored and saw people were editing "Mixer_paths.xml" files for increased volume. Now the problem here is that I think Android 10 has new permission restrictions for /system because I can't edit the file. I'm very new to this phone so if you guys have had this problem can you please help me out on how to solve this? Or you could also recommend some other rom that doesn't have this issue. TIA!
I fixed it by myself. I installed "Root Browser" by Jrummy and went into root/system/vendor/etc/mixer_paths.xml
There are 3-4 mixer files and you have to edit all for it to work.
First change the permissions to rw-rw-rw for all 3-4 files and search for "Volume Control". Change all 84 values to 94. Now change permissions back to what they originally were rw-r--r--
Reboot and enjoy!
Hi, I have a similar problem on my redmi note 9 pro, but my ROM are the original miui12.5.8.0.
I installed Root Browser, but I can't save the changes... Could you help me?I don't know how to change the permission, wen i try to change, i have no permission info.
Thanks