Solution of bugs..

                                         --Bugs Solution --







This post is for those porters who have facing
bug after successful boot into custom rom
BUG FIXING
Here is few most encountered bugs after porting
and their solutions.
(If you get any more bugs and solutions please
let me know. I will add them here. It will be
helpful for all.)




These r 

the 

solutions:-

1. FOR NETWORK RELATED ISSUES (3G)
Replace from /etc folder, mddb then replace
agps_profiles_conf, apns-conf,epo_conf, spn-
conf, virtual-spn-conf-by-efpnn, virtual-spn-conf-
by-efspn, virtual-spn-conf-by-imsi
2. FOR WIFI TOGGLE PROBLEM
Replace wide-dhcpv6, wifi in /etc folder
3. FOR INTERNAL / EXTERNAL MEMORY NOT
MOUNT PROBLEM
Replace vold.fstab from /etc folder
4. FOR HIGH AUDIO VOLUME ISSUE
Replace libcustom_nvram.sofrom /lib
5. FOR CAMERA NOT CONNECTED ISSUE /
CAMERA GREEN / CAMERA FORCE CLOSE
"unfortunately camera has stopped"
Replace first libcamdrv.so (needed for 6582
devices) and check if not success then replace
libcameraservice.so from/lib. If still not success
then keep on replacing one file at a time and
check.
Camera problem is the one major bug in this type
of porting. You have to have patience. This will
take half of your energy.
6. FOR AUDIO NOT COMING IN LOUDSPEAKER
MODE
Replace libaudio.primary.default.sofrom /lib
If still sound related problem:
Replace all libaud*.so
Sometimes replacing all audio files give you a
boot loop in that case replace only
libaudio.a2dp.default.so
libaudio.primary.default.so
libaudiocompensationfilter.so
libaudiocustparam.so
libaudiosetting.so
libaudioutils.so
7. FOR FLASH LIGHT NOT COMING FROM
CAMERA
Replace libfeatureio.so from /lib
8. FOR FM PROBLEM
Replace from /lib/module folder mtk_fm_drv.ko
9. TO FIX GPS
Replace from/lib/module folder mtk_stp_gps.ko
10. TO FIX COMPASS
Replace libsensorservice.so from /lib
11. TO FIX VIDEO SHOWING PIXELS AND
GLITCHES
Replace libvcodecdrv.so from /lib
12. SHOWING WRONG RAM INFO IN TASK
MANAGER
Don't change ro.product.device value in the
build.prop.
13. FOR GREEN CAMERA/ LAG / NO WALLPAPER /
NO STATUS BAR (IMPORTANT FILE FOR MT6582)
Replace libdpframework.so from lib folder
14. PROBLEM WITH 2G/3G SWITCH
Open Dialer and type *#*#4636#*#*
If a Pop Up appears go to Phone Information and
choose your preferred network type.
15. PROBLEM DOWNLOADING EPO
Replace in framework folder
mediatek-common.jar
mediatek-framework.jar
mediatek-op.jar
mediatek-telephony-common.jar
16. ANY RESOLUTION PROBLEM
Add this line to build.prop
ro.sf.lcd_density=your phone screen dpi
ex- ro.sf.lcd_density=480 for FHD devices
17. SOME KEYS NOT WORKING
Replace keylayout folder under /usr. If still not
work then replace the whole /usr folder.
18. TOUCH SCREEN PROBLEM
(Sometimes screen behaves weird ..means for
example if you touch bottom left effect on top
right ...almost opposite response)
Replace libinput.so from /system/lib folder.
19. BOOTLOOP ON HDC CLONES
Replace libsync.so from /system/lib folder.
20. WIFI TETHERING PROBLEM
Replace dnsmasq from /bin folder.
21. SCREEN IS UPSIDE DOWN
In build.prop find this line
ro.sf.hwrotation=0
change the value 0 to 180.
ro.sf.hwrotation=180
22. Problem with Proximity Sensor
Replace nvram.so, nvram_platform.so,
nvram_daemon_callback.so
23. For inverted touch
Replace libinput.so from system/lib
24. hese are list of libs for responcible for
aoutofocus
system\lib\hw\camera.default.so
system\lib\libcamera_client.so
system\lib\libcameracustom.so
system\lib\libcameraprofile.so
system\lib\libcameraservice.so
system\lib\libmhal.so
system\lib\libmhalcontent.so
system\lib\libmhaldrv.so
system\lib\libmhalmdp.so
system\lib\libmhalpipe.so
system\lib\libmhalscenario.so
system\lib\libmhalutility.so
system\etc\permission
\android.hardware.camera.fron t.xml
system\etc\permission
\android.hardware.camera.xml

25.For Stuck in boot logo
Replace Libmali.so






Thanks to Ranjeet Gupta...