bonus cho bạn thêm thông tin, nếu làm gút mắt chổ nào thì nói lên ae cùng giúp nhé
giải pháp nạp sang rom s7500 thắng or đen màn hình
>White/Black Screen Fade Issue When Installing Rom
If you are getting White screen fade issue try this.

Method 1(Easy):

Requirements:
  1. CWM backup of your working Gingerbread Stock Rom.
  2. Any working Gingerbread Based Custom Rom
Procedure:
  1. Flash Custom Rom
  2. Don't reboot.
  3. Goto backup & restore > advance restore
  4. Restore only boot image of Working Stock Gingerbread Rom
  5. Now Reboot.

Method 2(Advanced):

Requirements:
  1. 7-zip for windows.
  2. Galaxy ace plus GT-S7500 only.
  3. Stock Rom of your region or country.
  4. Do not use winrar it will corrupt zip
Procedure:
  1. Download Rom, Your stock rom, and 7-zip.
  2. Get boot.img from your Stock Rom.
  3. Open Inspiration Rom with 7-zip.
  4. Replace the boot.img inside Inspiration Rom with Boot.img of Stock rom.
  5. After it is replaced copy Inspiration rom to your sd card.
  6. Boot CWM, Wipe data, cache, dalvik cache.
  7. Install zip from sd card.