[ROM][4.4.4][EXT4/F2FS] Unofficial SlimKat 9.1 (grouper) - Nexus 7 Original Development

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Disclaimer: SlimRoms and I are not responsible for any damages to your device.
SlimRoms is a custom android operating system. The main goal is to offer users a slimmed down but still feature rich alternative to other android operating systems. The entire SlimTeam work together to bring you this tailor-made beauty straight from Android Open Source Project (AOSP) source code. All of the sources can be publicly viewed through GitHub and you can stop by the public Gerrit to submit patches of any type.
SlimKat is the project name for SlimRoms based on Android 4.4.
Original Features
The Real Dark Slim
Full system-wide dark interfaces. - If you like it smooth and classy.
Custom Shortcuts. Everywhere.
Hardware keys, Navigation Ring, Navigation Bar, Lockscreen, Tiles, Notifications etc. - We've got you covered.
System-Wide Keyboard Controls
Rotation, cursor control, optional emoticions, etc. - You'll be tapping away to your heart's content.
SlimCenter
Downloads, contact information, system app removal. - More fun than you can shake a stick at.
Camera Features
Trueview, Smart Capture. - Capture life moments with ease.
Unofficial Features
SlimLP Kernel for F2FS support
Added ROW IO Scheduler as default
Added Smartmax CPU Governor as default
ROM and Kernel built with UberTC (gcc-4.8 for cortex-a9)
Numerous other updates from my Slim repos on github
Installation Instructions
Download and install the latest TWRP recovery from here.
Convert cache/data/system to f2fs as desired by going to Wipe->Advanced Wipe. Select cache/data/system then FS Options->Change FS (select F2Fs).
If you want to install Xposed, be sure to use the version of Xposed located here but first install the dalvik patch from here.
Latest Downloads
Slim-grouper-4.4.4.build.9.1-UNOFFICIAL-20181011-2122.zip
md5sum: 7345aaa1e137f935c433ac1894a7a25b
Slim-tilapia-4.4.4.build.9.1-UNOFFICIAL-20181011-2246.zip
md5sum: 30351ddb8ee43c20765895b87b53076a
Grouper/Tilapia Changes
Google patches for August/2018.
Readded Google Apps due to bug with OpenGApps related to AOSP keyboard swyping.
XDA:DevDB Information
Unofficial SlimKat (grouper), ROM for the Nexus 7
XDA:DevDB Information
Unofficial SlimKat (grouper), ROM for the Nexus 7
Contributors
LordNerevar
Source Code: https://github.com/LordNerevar
ROM OS Version: 4.4.x KitKat
ROM Kernel: Linux 3.1.x
Based On: AOSP, LineageOS
Version Information
Status: Beta
Created 2015-09-30
Last Updated 2017-11-12

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Older downloads available for grouper and tilapia.

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Where is the difference to the legolas version?
Gesendet von meinem Nexus 7 mit Tapatalk

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js45721 said:
Where is the difference to the legolas version?
Click to expand...
Click to collapse
The main difference would be that this is not an All-F2FS ROM but uses back-ported parts of LP to support F2FS and/or EXT4 as you desire on data/cache. It also has a lot of updates from the latest CM-11 well after development on SlimKat stopped (newer F2FS version for one but there a many other repo updates and backports from LP without sacrificing speed or KitKat user experience).

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Runs snappy and without lags unlike any of the lollipop builds around.
Battery life looks good also so far.
Using it with ext4, no need for f2fs partitions.

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If I already have the official SlimKat Build 9.0 on my grouper, can I flash this one on top of the current installation? Or I need to wipe and install from scratch?

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dookie23 said:
If I already have the official SlimKat Build 9.0 on my grouper, can I flash this one on top of the current installation? Or I need to wipe and install from scratch?
Click to expand...
Click to collapse
I haven't tried it but a dirty flash should be fine with that ROM.

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LordNerevar said:
I haven't tried it but a dirty flash should be fine with that ROM.
Click to expand...
Click to collapse
It works. I was able to dirty flash and the N7 seems to be running ok. Thanks for supporting the grouper with some latest patches! My N7 is now immune to Stagefright!
Thanks again.

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Thanks for the good ROM.
Tried it after many troubles with any Lollipop ROM with any filesystem and finally the tablet is usable.
Battery life seems very good too. Standby of ~20h with WiFi turned on = 7% of the battery.
I've installed Facebook and Chrome and still the tablet works as expected even during update of some apps.
I really don't understand why Google updated it to Lollipop.

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Suddenly my wifi is not working. I am on this rom. Wifi is not turning on since 2 days. Please help me guys. I tried airplane mode on/off method but with no luck.
Sent from my NOOK using Tapatalk

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drshafi said:
Suddenly my wifi is not working. I am on this rom. Wifi is not turning on since 2 days. Please help me guys. I tried airplane mode on/off method but with no luck.
Click to expand...
Click to collapse
I see you posted this problem in two threads. Please create a bugreport and attach it to the thread of the ROM that you are running. Thanks!

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Security Patches
@LordNerevar:
Will you be able to merge these security patches to this rom? These are the newly found security issues for Oct.
https://groups.google.com/forum/#!topic/android-security-updates/_Rm-lKnS2M8
Thanks very much.

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dookie23 said:
Will you be able to merge these security patches to this rom?
Click to expand...
Click to collapse
I was hoping CM would continue to update their 11 branch but it appears that party is over. Yes, I will be merging these myself. I don't like being out of date on security patches either.

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Beautiful, fast ROM.
Working very well and fast, i suggest to make a detailed instruction for newbies, i personally used another installation instruction of
an F2FS ROM.

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Great beautiful and really smooth and fast rom, thank you! Everything is really good.
One small issue for me though is that the "Home" and "Back" buttons on my physical bluetooth keyboard do not work on this rom. Any chance to make those buttons functional again?

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pan05 said:
Great beautiful and really smooth and fast rom, thank you! Everything is really good.
One small issue for me though is that the "Home" and "Back" buttons on my physical bluetooth keyboard do not work on this rom. Any chance to make those buttons functional again?
Click to expand...
Click to collapse
Unfortunately, it would be dependent on your keyboard. But, there is some hope in the following posts...
http://forum.xda-developers.com/showthread.php?t=1336114
http://www.mobileread.com/forums/showthread.php?t=159538
If you get it working, please submit your updated .kl file and I'll gladly include it in the next build.
Good luck!
P.S. Is there a ROM that works with this keyboard? If so, I may be able to get the .kl file from that ROM if you give me the details of the keyboard as mentioned in the first post above. I'll need the Vendor/Product IDs.

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I'm on M6.0 ... How can I flash your rom?

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jglm4u said:
I'm on M6.0 ... How can I flash your rom?
Click to expand...
Click to collapse
I'll let someone with experience doing that answer. I found L to be unusable so I'm not even going to try M.

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LordNerevar said:
Unfortunately, it would be dependent on your keyboard. But, there is some hope in the following posts...
http://forum.xda-developers.com/showthread.php?t=1336114
http://www.mobileread.com/forums/showthread.php?t=159538
If you get it working, please submit your updated .kl file and I'll gladly include it in the next build.
Good luck!
P.S. Is there a ROM that works with this keyboard? If so, I may be able to get the .kl file from that ROM if you give me the details of the keyboard as mentioned in the first post above. I'll need the Vendor/Product IDs.
Click to expand...
Click to collapse
Thanks for the helpful response.
I remember that on LP 5.1.1 it probably worked 100%, so i went ahead and copied my backed up files from the LP keylayout folder to the existing installation, applied the correct permissions, restarted my n7 but unfortunately got no joy at the end
While using the LP keylayout files, the keytest app showed correctly the scanCodes 1 and 172 on the press events of the back and home buttons respectively but the keyCode presented for every button i pressed (not only those two) was always "KEYCODE_UNKNOWN". I believe this is why the bt keyboard didn't work at all with the LP keylayout files although i don't exactly understand why as there were no differences on the actual key codes in the files.
Afterwards i restored your original files in the keylayout folder. The keytest app now shows scanCode 1 on back button press and the keyCode in that case is "KEYCODE_ESCAPE" but it just doesn't work. On the home button press the keytest app does not show a response. All other buttons work as expected.
Finally I tried to compare your files with those of the stock kk version and found no differences at all so it probably isn't a problem of this specific rom.
Anyway, thanks again for your time and sorry for my English.
EDIT:
Ok, i finally managed to find my vendor and device id so i can use a specific file and not mess up with the generic layouts.
The file i created is Vendor_04e8_Product_7021.kl (Mobile bluetooth keyboard For nexus 7).
For my testing, I added just two rows in it:
key 30 BACK (actual physical key is "a")
key 31 HOME (actual physical key is "b")
and it still doesn' work. Any other action/letter/number assignment (apart from BACK and HOME actions) works as expected.
So it is clear to me now that i am not able to map the BACK and HOME actions to any key.
Thanks

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Just found this ROM, and installed it this morning. Downgraded from stock 5.1 to this.
The tablet now seems new again
Thank you
Sent from my A0001 using Tapatalk