-Official stock ROM 4.4.2 from Leagoo -Files are prepared to Spflash tool -If you have bugs on your phone, this may solve it (Can fix if the phone gets warm on the back, if you have bad battery time, or if the 'back' or 'menu' button starts the flashlight for a few seconds)
Hardware : MT6582 Model : Lead 1 Build number : SM619B_W_OTD_K550_LEAGOO_KK_V0.4.6_S0830 Build date UTC : 20140830
You flash it on your own risk! – flash with Spflashtool Dont flash it on a wrong phone! your risk to brick it!
Never needlessly Download preloader and DSP_BL blocks! It is always dangerous! On some models of phones you will have a brick even if you download these blocks read from phone which you own! Always remove from them marks in SPFT! ALWAYS have a working backup of your original ROM before you flash a new unknown ROM.
- Unpack FlashTools, and Click on Flash_tool.exe - Select a the MT6582_Android_scatter_emmc.txt in ROM - Wait file to be added into Flash Tool - choose Option->USB Model,click USB Model –> Choose Option->DA DownLoad All->Speed->High Speed, click High Speed - Turn off your phone - "Press F9 (hit Download button)" OR " if upgrade ROM Firmware->Upgrade " - and connect your phone into the computer via USB data cable. - The process will start and a red progress bar will appear after color purple, yellow. - And green circles display - Finish ! - You can now safely disconnect your phone and turn it on.
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※Please make a backup of your device before installing or updating ROM