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samedi 4 avril 2015

[Q] how to install android from scratch literally topic


Hi,
Currently i am struck at a situation where i need to do a fresh install of complete rom. The problem is as below
I own lenovo A6000 which is new in indian market with firmware kraft-A6000. I was frustated with the custom vibe ui given by lenovo and i started to install custom rom. So i booted temporarily into CWM and installed some other lenovo ROM which resulted in disaster. I have restored it back by using the backup taken using CWM. This restoration lead to complete failure of the phones signal reception. I mean literally cell is not able to register to network and catch any signals. So i got little bit frustated and booted into CWM temporarly using ADB and Fastboot and formated system files. (/system). I was aware that it will compelete wipe up the system but one thing which i was not aware that time was i haven't flashed the custom recovery over stock one. So now i am stuck at a point where i cannot install custom ROM zip through stock recovery since signatures and firmware mismatches are happening. I cannot fastboot the phone using debug mode as my stock rom is wiped off completely and my device is unauthorised when i listed it with "adb devices" command. So I came to the conclusion that i need install the stock rom zip using the stock recovery. When i googled for it, i could not find it available and got git-hub link for the same firmware code. So i am hoping to rebuild it into zip and install it using stock recovery.

After good effort of search, i am still left with questions as well as confusions.
1. Is there any way to make my device autherised and make signature check OFF using adb commands so that i can install custom rom -- my guess is probably no, but please confirm
2. I some how got the code of Kraft-A6000 ROM from git-hub and from lenovo site. I would like to know the steps (or any links if already posted) on how to make a zip out of it using linux shell or using eclipse without installing android sdk studio. (i am a bit skeptical as i saw in some of the xda forums stating the code is not building properly as it is missing some files but just wanted to give it a try myself)
3. If any pre-loading methods exist that factories use to install android for first time please suggest.

My last option is to go for a lenovo service center and check with them if they can get it back working but i really want to give it a complete try before going to them.

Note: i am not a core linux user and to my knowledge i tried my level best to resolve the issue myself. Please do also let me know if any extra information is needed. Any help on this is highly appreciated.

xda-developers