Download latest Android Lollipop 5.1 stock firmware for AD320 RK3288 board from here or from here.
Firmware details
Firmware： AD320_rk3288_5.1_wifi8723bs_20160530Firmware details
Image: update.img
Model：AD320 RK3288 board
Image file size: 214 MB
Platform: Rockchip RK3288 / RK32
Boot version: 2.30
FW version: 5.0.00
Model number: AD320
Company: Android
Build number: AD320_20160530_f7f781a
SDK version: RK30_ANDROID5.1.1-SDK-v1.00.00
Caution: Please produce non update firmware unless you lot know what you lot are doing, you lot actually desire it or it is absolutely necessary. Firmware updates may occasionally convey bad results, similar bricking your device, temporarily or permanently. The firmware update procedure is done exclusively at your ain risk. Before attempting to update the firmware, dorsum upward your data.
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