7.1.2 Nougat Rom Bug Fix Guide

NOTE:-
1) TO FIX BUGS YOU NEED LOT OF PATIENCE. SO PLEASE BE COOL DONT IRATE. 

DON’T WORRY IF YOUR ROM DOESN’T HAVE SOME FILES. NOT ALL ROMS CONTAIN ALL FILES.

IN MY ROM THERE ARE FEW FILES MISSING. SO THEY WONT BE THERE IN THE IMAGES I HAVE INCLUDED BELOW.

(I have used coolpad note3 lite v007 as a base rom.)

And always replace from stock to port

i)                  Adds

ii)               Audio

iii)            Audio(full sound fix)

iv)            Black screen after logo

v)               Bluetooth

vi)            Boot loop

vii)         Camera

viii)      Finger print

ix)            Finger print advanced method

x)               For cross porting

xi)            Gps

xii)         Hotspot (follow along with wifi)

xiii)      Offline charging

xiv)       Radio fm

xv)          Sd card/memory

xvi)       Sensors

xvii)    Sims (ril)

xviii) To fix camera (sometimes boot loop)

xix)       Touch screen

xx)          Volte

xxi)       Whatsapp media

xxii)    Wifi

I)                 NORMAL BUG FIX

1) ADDs

To fix adds replace hosts.

System>etc> hosts



2) AUDIO

To fix audio please change the below libs one by one. To prevent from boot loop.

system>etc>audio_effects
system>etc>audio_policy

system>lib>libaudio* .so
system>lib(/64)>libaudiocustomparam
system>lib(/64)>libaudiopolicymanager
system>lib(/64)>libaudiopolicyservice
system>lib(/64)>soundfx

 

3) FULL SOUND (audio)

To fix low sound or distrubances please change these libs one by one

System>lib(/64)>hw>audioxxxxxxxxx (audio files)

 

4) BLACK SCREEN AFTER LOGO

Some time you may get black screen after logo. To fix the black screen change these libs from both lib and lib64

System>lib(/64)>Libcam.paramsmgr.so

 

5) BLUETOOTH

To fix Bluetooth connectivity or bluetooh speakers change these libs

system>bin>uim*
system>bin>bluetooth*

system>etc>bluetooth
System>etc>permissions>android.hardware.bluetooth.xml

system>lib(/64)>libbluetooth_mtk.so
system>lib(/64)>libbluetoothem_mtk.so 

 





6) BOOTLOOP

If you stuck at boot logo. Change the libs from both lib and lib64 and also

Recheck boot.img

system>lib(/64)>libandroid_servers.so
system>lib(/64)>libmedia_jni.so


7) CAMERA

Camera is the most time taking bug. If you have cam issues please change the libs one by one. Be patient if any lib cause bootloop replace it with old libs.

system>etc>media_profiles.xml

system>etc>permission\android.hardware.camera.fro nt.xml
system>lib(/64)>libcamera.so
system>lib(/64)>liboemcamera.so
system>lib(/64)>hw>camera.default.so
system>lib(/64)>libcamera_client.so
system>lib(/64)>libcameracustom.so
system>lib(/64)>libcamer aprofile.so
system>lib(/64)>libcameraservice.so
system>lib(/64)>libmhal.so
system>lib(/64)>libmhalcontent.s o
system>lib(/64)>libmhaldrv.so
system>lib(/64)>libmhalmdp.so
system>lib(/64)>libmhalpipe.so
system>lib(/64)>libmhalscenario.so
system>lib(/64)>libmhalutility.so
system>lib(/64)>camalgo

 







8) FINGERPRINT

To fix finger print please change all the libs carefully.

System>etc>permissions>android.hardware.fingerprint.xml
System>lib(/64)>libgatekeeper.so
System>lib(/64)>hw>gatekeeper.mt6735.so
System>lib(/64)>libmcgatekeeper.so
System>lib(/64)>hw>fingerprint.default.so

 





9)  FP ADVANCED FIX ( if usual doesn't work ):-

If the above method doesn’t work . then only use this method. To fix fp in cool pad use the universal patch.

System>bin:-
                   fingerprintd
                   Gx_fpd
                   tee_deamon

Lib64>lib:- ( if any missing leave that)
                  Fpclient
                  Fpalgorithm
                  Fphal
                  FPservice


10) FOR CROSS PORTING:-

For cross porting like mt6735 to 53 or xz use this cross porting method

System>etc>firmware
System>etc>Apnconf
System>etc>spnconf
System>lib(/64)>HW ( full folder)
System>xbin>mnld
System>mddb

 

11) GPS:-

To fix location change these files with stock rom files

system>etc>gps.conf 

system>xbin>libmnlp 

 

12) HOTSPOT:-

To fix hotspot connectivity or thetering follow this guide along with wifi fix

system>bin>netd


13) OFFLINE CHARGING:-

To fix offline charging unpack boot.img and replace healthd.

Open boot.img and replace sbin/ healthd from ramdisk

System>bin:-
Kpoc_charger

System>Lib(/64):-
Showlogo

system>sbin>healthd

 



14) RADIO FM:-

To fix fm change the below bin, etc and libs

system>bin>fmradio
system>etc>firmware>mt6620_patch_e3_hdr.bin
system>etc>firmware>mt6620_patch_e6_hdr.bin
system>etc>firmware>WMT.CFG
system>lib(/64)>libfmcust.so
system>lib(/64)>libfmjni.so

 



15) SD CARD OR MEMORY:-

To fix storage issues do change the below files and repack boot.img properly.

In boot.img > ramdisk> fstab

system>bin>vold
system>bin>pq
system>bin>sdcard




16) SENSORS:-

To fix sensors like gyroscope, proximity change the bins and replace ibs with stock rom contents.

system>bin>akmdXXX
system>bin>servicemanager
system>bin>sensorservice
System>bin>msensord
system>etc>permissions
system>etc>firmware (folder)
system>lib>libsensors.so

system>lib>libms3c_xyz.so ( acc. To device)
android.hardware.sensor.xxxxx.xml









17) SIMS(ril):-

To fix network issues change the below files one by one . if u face boot loop replace with old files.

system>etc>firmware>modem.img
system>etc>permission (RIL)

Try these aswell if  you stuck at Boot logo 

System>bin>mtkrild
System>bin>mtkrildm1
system>bin>stmd

 



18) TO FIX CAMERA:-

To avoid bootloop do change the below files carefully.Some times these will cause bootloop so try changing one by one libs

Go to System/lib & lib64 replace all libs  like this:-
libcamera.mt67xz

like :- libcameracustom.lib etc
          libcamalgo.lib


     19) TOUCH SCREEN:-

      To fix touch response and sounds while touch change the below file

      system>usr
     system>usr>keylayout>Generic.kl (fix Homebutton)

 

      20) VOLTE:-

     To use volte feature both port rom and base rom should conatain volte.    feature.

    ( Will only work if your Base Rom , Port Rom and Kernel supports VOLTE )

     Boot.img:-

     init.volte.rc

     System Folder:-
     bin>volte_stack
     bin>volte_imcb
     bin>volte_ua
     lib(/64)>volte_imsm





     build.prop ( edit or check the values in the build prop)

    ro.mtk_volte_support =1
    persist.mtk.volte.enable =1

    21) WHATSAPP MEDIA:-

To fix whatsapp bug like video calls and camera. Or whatsapp media change these files.

    from System>bin> replace these files:-
    Media
    mediaserver
    netd
    service
    servicemanager
    surfaceflinger


     22) WIFI:-

To fix wifi or errors in connections like disabling after few minutes change the below files or folders respectively.

     system>bin>netcfg
     system>bin>dhcpcd
     system>bin>ifconfig
     system>bin>hostap
     system>bin>hostapd
     system>bin>hostapd_bin
     system>bin>pcscd
     system>bin>wlan*
     system>bin>wpa*
      system>etc>wifi (folder)
     system>lib(/64)>libhardwarelegacy.so 







                 

IF U FIND ANY ERRORS OR MISTAKES WITH MY GUIDE PLEASE COMMENT .

WISHING YOU BEST OF LUCK