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[TUTORIAL] Install CWM or TWRP on Lenovo A850 (Root needed)

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By GreatApo, Senior Member on 9th February 2014, 06:50 PM
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28th March 2014, 05:29 AM |#11  
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Need help with firmware
hello bro,thanks for the nice tut,can u please send me the stock firmware of lenovo a850
 
 
26th April 2014, 12:09 AM |#12  
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Quote:
Originally Posted by ankush_pathania

hello bro,thanks for the nice tut,can u please send me the stock firmware of lenovo a850

I downloaded the A850 stock firmware from this page.
6th May 2014, 07:23 AM |#13  
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Quote:
Originally Posted by GreatApo

Hello everyone,

I am going to write you some simple steps to install CWM 6.0.3.4 / TWRP 2.5.0.0 recovery on your Lenovo A850.
I will be very detailed, advanced users should skip the boring stuff :P

This guide was writed based on this thread. A similar guide can be found at this thread. Look there for more info.

You will need:
- Rooted Lenovo A850 (simple guide here, not tested)
- Mobileuncle MTK Tools (GooglePlay)
- Recovery Image for A850 (CWM or TWRP)

BEFORE GOING ON, MIND THAT I TAKE NO RESPONSIBILITY IF ANYTHING HAPPENS ON YOUR PHONE.
USE AT YOUR OWN RISK!!


INSTUCTIONS:
1. Download the recovery image:
First of all we need to find out what firmware version our phone has (ROW or CN).
I can see mine looking the Baseband version (located at Settings->About phone->Version Infos->Baseband version) which is "A850.ROW.v18", so i have a ROW firmware installed. I suppose it will say something like "A850.CN.vXX" if you have a CN filmware.
Now we can download the right recovery image version.
- For ROW firmware download this (Mirror 1 from source thread).
- For CN firmware download this (Mirror 1 from source thread).
(Downloads include both CWM and TWRP recoveries)
After downloading, extract the content (use 7zip program). You will see 3 files, we will not need the "MT6582_Android_scatter.txt" file. You can delete it or keep it if you want to flash roms in the future.

2. Move the revovery image in you SD card:
Connect your phone on your PC and mount the SD card. Now move the recovery image you want in you phone's SD card:
- For TWRP is the "recovery_TWRP_2.5.0.0.img" file
- For CWM is the "recovery_z_CWM_v6.0.3.4.img" file
(You can delete the other one after that)
When the move finishes, disconnect the phone.

3. Install Mobileuncle MTK Tools:
Open GooglePlay on your phone, search for "Mobileuncle" and install Mobileuncle MTK Tools.

4. Install recovery: (IF YOU DO NOT KNOW WHAT YOU ARE DOING DO NOT PROCEED)
Open Mobileuncle MTK Tools.
Click on "Recovery Update" and the app will find the recovery image in your SD card.
Click on the recovery image you selected (recovery_TWRP_2.5.0.0.img or recovery_z_CWM_v6.0.3.4.img), click OK to install recovery... wait some seconds, and then click OK to reboot into recovery.
Done! You are in the recovery

How to get into recovery: (2 simple ways)
- Power of your phone. Wait some second. Press the power button and both volume keys and not let them go until the logo appears.
- With Mobileuncle MTK Tools, open it and click on "Into Recovery Mode".

Keys:
- CWM: Use volume keys and the power button to move around
- TWRP: Touch the screen

Credits:
- linerty (from the Russian lenovo forum)

Bugs:
- I got an error will trying to backup (CWM ROW version), "can't mount data" . If you face this problem, better install this CWM version. It worked for me

My current recovery is totally in chinese, since I am thinking to get rid of that, is this CWM or TWRP will replaced the chinese version to the English? thanks.
6th May 2014, 01:36 PM |#14  
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Quote:
Originally Posted by powerwoot

My current recovery is totally in chinese, since I am thinking to get rid of that, is this CWM or TWRP will replaced the chinese version to the English? thanks.

CWM and TWRP are in English.
6th May 2014, 01:51 PM |#15  
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Quote:
Originally Posted by giorgoslouk

CWM and TWRP are in English.

Just installed the CWM finally, yup it is in Eng and the most important part is wiping out the chinese language. thanks
13th May 2014, 07:03 AM |#16  
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I have to agree, sending to recovery terminal by using the hardware key power button + vol up/down key is just too difficult to do so, most of the time sent me to meta or factory mode. Mobileuncle tool works but what I am most preferred by using the button in case the ROM inaccessible and I am unable to reach mobileuncle to do the restoration.
28th May 2014, 08:24 AM |#17  
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help
Hello! Can I install CWM from app Rom Manager not? Thank you.
3rd June 2014, 04:13 AM |#18  
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Anyone have cwm for Lenovo a680 ?

Sent from my Lenovo A680_ROW using XDA Free mobile app
30th June 2014, 01:35 AM |#19  
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A850 vibe rom... http://pan.baidu.com/share/link?shar...&uk=2282847817

flash it via twrp..no found bugs yet..notif led working, no black screen after calling..

credits to the developer of this rom..i dont know who he is :P
30th June 2014, 06:58 AM |#20  
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How can we find out is someone working on CM for our device?
2nd July 2014, 11:43 PM |#21  
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Quote:
Originally Posted by denis022

How can we find out is someone working on CM for our device?

By googling it, but it seems that there are not so skilled devs on this device yet... A programmer named "linerty" have cooked some ROMs but i do not know if he may ever go after CM.

From my stand point, an other problem is that devs that work on this device are not in this forum... i have found a Rusian forum, a Spanish and a Chiniese (working over the MIUI version of a850), so you can't easily track the devs. They also do not seem to cooperate each other... They should have publish their work here too.
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