Download latest Android KitKat 4.4.4 stock firmware for JXD S7800 game pad from here or here. Download Android Jelly Bean 4.2.2 stock firmware for JXD S7800 game pad from here or from here (16 GB model). Download anothe JXD firmware from here.
Firmware details
Archive： S7800B 4.4.4 fw
Model: JXD S7800 game pad
Image: Firmware 机器固件程序 / update.img
Image file size: 303 MB
Platform: Rockchip RK3188Boot version: 2.10
FW version: 4.4.02
Build number: S7800-01-V4.4-20141211.182927
Inside archive: Rock USB Driver, S7800B_firmware_update tools 刷机工具, Firmware 4.4.4 & JXD S7800B Upgrade Method USB.doc
Changelog
1）Android system version Android 4.4.4, system memory usage less about 500MB, can have up to 1.5GB of available RAM memory on to run applications and games.
2） Adjust the partition capacity allocation: internal storage from 1GB to 3GB , adjust the internal SD memory (8GB machine turned from 5.3GB 3.3GB, 16GB from 12GB machine becomes 10.1GB).The default program is installed 3GB internal storage space, now the largest installation package can be installed. You can manually move to the internal SD card or an external SD card (SD ability to mount an external transfer),
3）Modify computer connection to MTP mode, connect your computer directly open the disk, no need to manually connect USB disk.
4）TF card mount optimization tools: increased upper right corner mount SD quick entrance, increasing each step tips. Just reboot after the operation to achieve greatly enhanced usability mount. Games and data packet stored body or external mass storage TF card, maximum 64GB TF card can be mounted. Another big game are easy to get
5）Key mapping: the system will not be the main interface and set the center exhaled key mapping interface, users mistakenly avoid new configuration interface exhaled after a loss.
6）The screen refresh rate: Ensure 60HZ, keep the game display speed.
7）HDMI output increase in 1920 * 1080 60HZ mode
8）the shutdown menu: Added "reset" menu, delete the"airplan Mode" menu
9）optimize support for chicks simulator, perfect chick V1.3.2 version supports native key support and configuration optimization. The latest version of the happychick suport psp cloud configuration, download the corresponding model S7800 models can be configured to run smoothly, for example PSP God of War: Ghost of Sparta.
Caution: Please do not update firmware unless you know what you are doing, you really want it or it is absolutely necessary. Firmware updates may occasionally have bad results, like bricking your device, temporarily or permanently. The firmware update process is done entirely at your own risk. Before attempting to update the firmware, back up your data.
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