The Lenovo Tab A7-30 A3300 is a 7" tablet having an IPS capacitive touchscreen with a resolution of 600x1024 pixels and a pixel density of ~170 ppi, giving a wide viewing experience.
There are three variants of the Tab A7-30: WiFi only, WiFi+2G (A3300-G/GV), and WiFi+2G+3G (A3300-W/H/HV). Additionlly, there's also a Chinese variant without the preinstalled Google apps, the A3300-T.
The tab shipped with Android 4.2.2 (Jelly Bean) out of the box with the first releases, with a 4.4.2 (KitKat) update released by Lenovo, giving a faster and better experience and features. There are also unofficial updates, giving up to Android 5.1.1 with CyanogenMod 12.1. CyanogenMod 13 is also currently in alpha development.
The WiFi variants use an ARM MediaTek MT8121M 28nm quad-core Cortex-A7 SoC with a clock speed of 1.3GHz and a PowerVR SGX 544 GPU in 156MHz, enabling better multitasking. The other two variants use MT8382M, that is very similar to the other SoC. But the latter instead has a Mali-400MP2 GPU.
A7-30 has an internal storage of 8GB, with a dedicated microSD slot for additional storage, up to 64GB. It has 1GB RAM to be used by the system.
It takes photos and videos with the rear camera that captures images up to 2MP, and the front camera capturing pictures up to 0.3MP.
A3300 plays music and audio with the front facing stereo speakers, with features from Dolby Atmos™. It takes audio recordings and calls from the integrated stereo microphone.
The tablet has WiFi 802.11 b/g/n, Bluetooth® 4.0, A-GPS, FM radio and G-sensor (accelerometer). It has a microUSB 2.0 port for charging and transferring media. The Tab A7-30 has a 3450mAh non-removable lithium polymer battery that gives a usage time of up to 8 hours and a standby time of up to 2 weeks.
*When you download some files on Windows (depending on file type), they will be blocked on Windows by default. You can unblock them on their file properties window. *To install the drivers, run Install.bat as administrator. *Just answer Yes/OK/Y to any of the questions asked by the installer. Be sure to disable or remove other programs that could interfere with the installation. Also, for Windows 8.1+ x64 users, you should disable driver signature verification. *You could verify if the drivers were installed successfully by connecting your tablet while it is turned off and while holding the Volume Down button. It would show a driver installation notification. *Using the most updated versions of SP Flash Tool will result the flashing of firmware to our device to an error.
*By flashing the GV and HV firmware to the G and H variants respectively, you'll get mobile telephony functions in your device, which was absent originally in those variants.
Instructions for Firmware Flashing with SP Flash Tool:
Install the drivers and extract the SP Flash Tool and firmware folder anywhere you want (I prefer it either on the desktop or the root of storage, C:\).
Run flash_tool.exe with administrator privileges.
In the Download section, click on Scatter Loading. It will open a dialog box, select MT6582_Android_scatter.txt. Make sure every checkbox on the list is checked.
Click the Download button.
While holding the Volume Down key from your powered off tablet, connect it to your PC. It should start flashing the firmware right away. You can release the button after SP Flash Tools started flashing (it will show "Flash (percentage)%" in the progress bar).
After flashing has completed, it should show a window with a check () icon. You can then disconnect the cable and reboot your device.
Reset Button:
Root the Lenovo Tab A7-30: KingRoot *You could replace it by flashing a custom recovery, then flashing SuperSU
TeamWin Recovery Project 3.0.0-0: In Attachments (to be uploaded) (Credits to jemmini of 4pda.ru forums)
CyanogenMod 12.1 (Credits to Toenado of 4pda.ru forums) A3300-G/GV (TEST BUILD) A3300-W/H/HV Recommended GApps Package: Open GApps Attached is a .gapps-config that I am using with the Super package. Notes:
Default language is Russian, you can change it on the Setup Wizard or the Settings app
You need to flash a patch after booting the ROM to fix some issues
There are also Sound Fix and YouTube 720p Playback Fix zips to be flashed also after booting the ROM and after installing YouTube, respectively
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