Optimized LineageOS 18.1
brought to you by the Jflte DevConnection Team
DISCLAIMER
Your warranty is now void.
We are not responsible for bricked devices, dead SD cards, thermonuclear war, or you getting fired because the alarm app failed.
Please do some research if you have any concerns about features included in this ROM before flashing!
YOU are choosing to make these modifications and if, YOU point the finger at us for messing up your device, WE will laugh at you.
brought to you by the Jflte DevConnection Team
DISCLAIMER
Your warranty is now void.
We are not responsible for bricked devices, dead SD cards, thermonuclear war, or you getting fired because the alarm app failed.
Please do some research if you have any concerns about features included in this ROM before flashing!
YOU are choosing to make these modifications and if, YOU point the finger at us for messing up your device, WE will laugh at you.
FEATURES
- Based on Official LineageOS 18.1 - Android 11
- Latest Security Updates integrated
- Improved Speed, Stability, RAM usage & Battery drain
- Powered by Buffcore Kernel - some / most / all of the following may or may not be hooked up yet.
- Many, many more - install and see for yourself!
- Buffcore 10
- set config_hz to 300
- add intelliplug
- tweak our touch boost
- add color control tweak
- stop lowclocks from defconfig
- build with gzip
- quickwakeup - the kernel can semi-wakeup and decide if needs to end suspend or return to suspend with losing
- doze
- fully optimized toolchain flags
- reduced sleep timeout
- dynamic file syncing - early_suspend and dyn_fsync by default
- print to dmesg log when a suspend gets broken
- sdfat enabled
- fastcharge implemented (up to 1900 ac / 1600 usb)
- bcmhd wakelocks for rx and tx halved
- libmemcopy and libstring sped up
- io readahead to 1024k
- power efficient work queues
- voltage tweaking user interface
- faster vmstat
- autosmp hotplugging replacement
- mmc crc disabled
- allow for lower cpu voltage
- reduce swapiness
- optimize divide / multiply by power of 2
- added tcp optimization options
- set westwood default
- optimize cbfillrect function
- reduce wifi wakelock times
- nohz: reduce overhead under high-freq idling patterns
SUPPORTED DEVICES
- GT-I9505 (jfltexx)
- GT-I9505G (jgedlte)
- GT-i9507 (jtfddxx)
- GT-i9508 (jfltezm)
- SCH-I545 (jfltevzw) VERIZON USERS: since your Bootloader is locked, you must be on the VRUAMDK
- SCH-I545L (jfltelra)
- SCH-R970 (jflteusc)
- SCH-R970C (jfltecri)
- SCH-R970X (jfltecsp)
- SGH-I337 (jflteatt) AT&T USERS: since your Bootloader is locked, you must be on the UCUAMDB or UCUAMDL
- SGH-I337M (jftlecan)
- SGH-l337Z (jfltecri)
- SGH-M919 (jfltemo)
- SGH-S970G (TracFone / Straight Talk)
- SM-S975L (TracFone / Straight Talk)
- SPH-L720 (jfltespr)
- SPH-l720T (jflterefreshspr)
- jfltezm - China Mobile
- jfltetfnatt
- jfltetfntmo
DOWNLOADS
- Optmized LineageOS 18.1: Google Drive
- GApps: Open GApps / Open GApps A11 (Test Builds) or BitGApps or MindTheGApps
- Official TWRP Recovery: HERE
- JDCTeam TWRP Recovery: HERE
- TWRP Recovery Loki Patched: HERE
- Magisk: HERE
GAPPS
You can use Pico or Nano Open GApps / Open GApps A11 (Test Build) or BitGApps or MindTheGApps
Be sure you have selected Platform: ARM and the proper Android version of the ROM you are going to flash. If the ROM you want to flash include GApps, no need to download and flash any GApps at all.
TWRP
You can use either the latest and recommended Official TWRP Recovery or JDCTeam Recovery to flash the ROM.
If you have a variant with a locked but exploitable Bootloader like AT&T and Verizon then use the TWRP Recovery Locki Patched by mattgyver.
SAMSUNG GALAXY S4 UNIFIED GUIDES & COLLECTION
You can follow the well-explained steps to install a ROM, find and download the latest Bootloader & Modem for your variant from the S4 Unified Guides & Collection thread by Retrial.
JDCTEAM UNIVERSE
SOURCE CODE
Avaible at JDCTeam GitHub
CREDITS
Side - Lead Developer / The Boss
Buff99 - Minor Developer / Major Meddler
JDC Team
LineageOS
OpenGapps
JDCTeam
Buff - Buff99
Chibbo - Chibbo
Creeper - Creeper36
Diego Monaco - alucard_24
Dimitris Katikaridis - side
Franck Rohée - franzyroy
George Mantratzis - Retrial
Ray Daley - gadget!
Jim Silverlock - Jsilver73
Marco Zanin - -+BB+-
Matthew Booth - MattBooth
Mattia D'Alleva - AntaresOne
Mike Atkins - FernBch
Oliver - angelcalibur
Paul Harris - hawkerpaul
Paul Keith - javelinanddart
SalimPS - SalimPS
Simeon Ivanov - smstiv
Stefano Meroni - smeroni68
Yannis Menexes - SkL*
Vasileios Moisiadis - vmroot
You are welcome to join the Official JDC Team chat/test group in Slack
Avaible at JDCTeam GitHub
CREDITS
Side - Lead Developer / The Boss
Buff99 - Minor Developer / Major Meddler
JDC Team
LineageOS
OpenGapps
JDCTeam
Buff - Buff99
Chibbo - Chibbo
Creeper - Creeper36
Diego Monaco - alucard_24
Dimitris Katikaridis - side
Franck Rohée - franzyroy
George Mantratzis - Retrial
Ray Daley - gadget!
Jim Silverlock - Jsilver73
Marco Zanin - -+BB+-
Matthew Booth - MattBooth
Mattia D'Alleva - AntaresOne
Mike Atkins - FernBch
Oliver - angelcalibur
Paul Harris - hawkerpaul
Paul Keith - javelinanddart
SalimPS - SalimPS
Simeon Ivanov - smstiv
Stefano Meroni - smeroni68
Yannis Menexes - SkL*
Vasileios Moisiadis - vmroot
You are welcome to join the Official JDC Team chat/test group in Slack
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