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Driver USB

Recovery + Root


- Cài Recovery:

Mở SP Flash Tool ra trỏ đến file MT6589_Android_scatter_emmc.txt

Nhớ tích vào ô DA DL All With Check Sum trước khi nhấn nút Download.

- Root máy:

Nhấn đồng thời tổ hợp phím Volume +, Volume - và phím Power cho đến khi xuất hiện giao diện của CWM.

Chọn Install zip from sdcard rồi chọn file Superuser-3.1.3-arm-signed.zip để flash.

- Up Rom Tiếng Việt:

1. Rom chế dựa trên Rom ZTE V987 của bgcngm


- Đã Root và xóa hết các app TQ.

--> Source: http://forum.xda-developers.com/showthread.php?p=40822562#post40822562

- Cài Gapps: Google Play, Gmail.....



2. ROM Android 4.1.2 Based on Lenovo Version : A820_S138_130419

Lenovo A820 - V1

Lenovo A820 - V2.1

Features ROM:


- Removed Chinese apps and services
- Removed many Lenovo and Unicom apps, including stock browser – you will need to install another one from the market

- Removed Baidu, AOSP Latin keyboard only

- Boot and shutdown animations changed from Wo3G to stock Android, logo changed to Lenovo
- root applied, RootExplorer installed as system app; latest SuperSU, binary and busybox versions
- init.d support, build.prop, kernel, wifi, gps, sdcard i/o, zipalign, ext4 filesystem, sqlite3 databases, battery tweaks
- increased jpeg quality to 100%, camera quality tweaks
- adblock hosts for blocking advertising
- Sony Bravia Engine 2
- Sony xLoud & ClearAudio+
- openVPN support
- Advanced CWM Recovery
- Google Apps and Services, Google Play
- locale set to EN – English is selected by default on first start and welcome screen
- Stock Lenovo launcher
- based on the official S138 EN/CN ROM, supports English and Chinese only



- Cleaned

- Put back Lenovo Power Saver and Stock Browser

- Hopefully fixed issues with calendar. Google Calendar added. Please report back if there's still a problem.

- GoogleMaps, StretView, Youtube

- Updated busybox to latest version

- Additional init.d tweaks

* If you don't want some system app, you can uninstall it with TitaniumBackup.


Install ROM:


- Remove battery

- Connect the device to the computer, Install provided driver. Device will show for 5-6 second in device manager, you need to be quick and select Update driver. then select the driver suitable for your OS. When installation complete, diconnect the phone.

- Flash via FlashTool (included in zip), but it's recommended to backup you whole system to external sdcard prior flashing. Open the scatter file in the archive.
  Check DA DL All with checksum before flashing, otherwise it will brick your phone. Connect the cable again, flash process should start. It will be complete when you see a dialog with green circle. Then you can put back battery and start your phone.
- First boot will take some time


Place the update zip in the external SDcard, or if you dont' have one, place it on the internal sdcard. Tur phone off and remove battery. You need to have an advanced recovery, such as CWM. If not, please download the attached recovery.zip and FlashTool. Extract both archives, open FlashTool and click on load scatter file button. Select the scatter file from recovery directory, click on Upload button and check DA DL All With Checksum. When upload complete, you will see a green circle. Put the battery back, boot into recovery mode (Volume UP + Volume Down + Power), then flash the zip. When completed, phone will reboot automatically.

First boot will take some time

Source: http://www.needrom.com/mobile/lenovo-a820-12/


- Cài đặt gói ngôn ngữ Tiếng Việt Language Pack:

Vào Recovery flash tập tin A820-vietnamese.zip rồi khởi động lại máy.




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