[Guide] MTK Rom Bug Fix

Bug Fixing When Porting Rom

1) 2G/3G Related Issue?
=Replace in Port Rom From Stock Rom etc Folder:
-mddb folder if
-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) WiFi Toggle Problem?
=Replace in Port Rom From Stock Rom etc folder:
-wide-dhcpv6
3)Internal/External Storage not Mounting?
=Compare Port Rom & Stock Rom boot.img:
-init_ssd.rc
-fstab
4)High Volume issue?
=Replace in Port Rom From Stock Rom lib folder:
-libcustom_nvram.so
5)Camera Not Connected/Green?
=Replace in Port Rom From Stock Rom lib folder:
-libcamdrv.so
-libcameraservice.so
6)Sound Problem
=Replace in Port Rom From Stock Rom lib folder:
-First try libaudio.primary.default.so
-if not Work Try All Files With libaudio
-Replacing All Files Sometimes Cause Bootloop,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 Porting:)SHOWING WRONG RAM INFO IN TASK MANAGER:

-Don’t change ro.product.device value from the you are porting.
13)FOR GREEN CAMERA:
-Replacelibdpframework.so from lib folder

16)ANY RESOLUTION PROBLEM
Add this line to build.prop:
-ro.sf.lcd_density=your phone screen dpi
17)SOME KEYS NOT WORKING:
-Replace keylayout folder under usr
18)NETWORK PROBLEM:
-Replace Firmware Folder from Etc
19)BLUETOOTH:
-Replace Mtkbt.apk IF PROBLEM NOT SOLVED THEN REPLACE BLEUTOOTH FOLDER FROM ETC

:::Happy Porting:::