[Lenovo P780] fictionch:
Hi guys,

That's a lot of text to read but when you guys advice me about that whole situation it can serve other people to plan and make their phone flashed without bricking it.

I need your opinion and advice on my move from Jelly Bean to KitKat. I have Lenovo P780 (China version) bought before 03.2014. My ROM is VIBEROM_V1.0_1347_3_ST_P780.

In general i'm happy with this rom, but after so long time of using it I would like to change it to more faster KitKat. And I would like to stick with VIBEUI because as i've said i'm happy with it. So I chose the newest: VIBEUI_V2.0_1512_7.149.1_ST_P780. I know it has only english and this other language :D but I don't use my native language even now when i have that option. Is it worth to flash it? Some people said about earlier version of kitkat it was buggy, and that JB is more stable than KK, but now after so much time of development it should be ready to smooth usage, right? :confused:

What I've done already:

I have istalled driver for preloader, lenovo usb drivers and adb drivers and then rooted with Kingoroot (of course on developer state and enabled usb debugging).

Then I made my copy of ROM through mtk droid tools, so I have istalled supersu but only for binaries (because mtk droid demanded them), then istalled busybox (from google play and hit install inside an app). And then I made copy of rom in mtk droid tools. But first hit „root” and then made backup, which was done without any error and is also prepared for SP Flash Tool. (I had trouble with backup because it ended with error but it was due to my default write disk in lenovo which was set on external storage, so mtk droid was writing image of ROM on built-in storage, which is, as you all know, very small, so i've changed default write disk and i was good to go).

I have done also backup of imei and nvram through mtk droid tools and backup of imei through mobile uncle tools.

THAT'S ALL I HAVE DONE. I didn't do anything besides this.

So first question: Is this enough? I mean root, drivers, backup of rom and imei.

Second question: What about „locked bootloader”? I've read a lot but in case of Lenovo P780 i've never read anything on locked bootloader besides one site but i can't insert url on my post because i'm new

So do I need to do sth with bootloader or it is unnecessary? :confused:

Next flashing: For downloading rom I used rather the most popular site with roms: needrom. I downloaded VIBEUI_V2.0_1512_7.149.1_ST_P780_OLK_W_3D22.zip. In this site is also scheme how to flash it. They say this stock rom should be flashed through CWM (I downloaded this recovery from their site):

Step 1: Download the custom ROM copied to an external SD card root directory

Step 2: the shutdown state. While holding down:

– Power button + volume button up, to enter the recovery mode.

– Wipe Data / Factory Reset -> delete all user data

– Wipe Cache Partition -> Wipe cache

– Advanced -> Wipe Dalvik Cache

Step 3: Return to recovery main interface Install zip from sdcard -> choose zip from sdcard -> Select your ROM

Step 4: Brush complete, restart the phone Patience required – first boot takes a while

Is this complete scheme? :confused: Because in xda i've found other way:

Install Vibe ROM, same as step 4 and then:

Step 5. Install Gapps

Step 6. Install SuperSU

Step 7. Wipe data/cache (Factory Reset) and reboot. Done

Sorry for carefullness but i don't want to brick my lenovo :) and it's better to ask with stupid questions than don't ask and flash. Also my brother had lenovo s650 but after conneting charger with electric socket it burned → then send on warranty to china --> then nothing... So... yeah i'm cautious.

I'm planning to flash cwm from needrom (same page as for stock rom) through mobile uncle tools (of course i will backup my contacts and other stuff). Or maybe it's better to create cwm recovery through mtk droid tools?

Then flash new vibe ui. Should I done this way or is it better other way? Like using stock revovery (but phone is rooted, i know i can remove root but i don't know if this rom is modded in any way so xda users didn't recommend to flash with stock recovery) or doing factory reset and then flashing with stock recovery ( i suppose doing factory reset can be done no matter if rooted, modded, etc., am i right? Then i should be available to make update through system settings?)? Asking because some guys said thay haven't managed to flash stock rom through cwm. ;)

Now let's skip to Kitkat. Supposing i have done flashing properly through cwm i will have Kitkat vibe in stock version. So what then? I suppose i will need to:

1. root it (with kingoroot or iroot or sth like that because there are some problems with root on kitkat, right?)

2. get rid of ****ty china apps through root (suppose there will be around 10 apps to delete, so i will just run ie. kinguser and delete this system apps?)

3. install compatible recovery through mobile uncle tools (cwm or twrp, but in xda rather reign twrp) to flash gapps and maybe supersu if it's possible? Because i've read there are problems with framaroot on vibe but this regards only to framaroot or supersu too?

4. maybe restore imei, if it's lost

5. flash new modem (suppose this one i have now: V52?)

That's rather all, right?

Thanks in advance for your patience in reading and your opinions ! :)