WARNING !!!
You are at risk of bricking your device should you choose to use the attached firmware & tools. You have been warned. You agree that any liability arising from the usage and/or sharing of the files below is strictly yours and may not be transferred to anyone else in this forum. Use at your own risk !!!

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S7800B SUPERCHARGED v2.2.1 is out !!! This is a customized version of JXD's Stock Firmware v1.1.4 with several
fixes, enhances, loads of useful applications, and a selection of overclocked kernels. Finally fixed the issue with the other batch of s7800Bs not overclocking above 1,200 Mhz.

SUPERCHARGED v2.2.1 - CWM UPDATE 2013/12/27 URGENT FIX !!!

- Removed overclocked kernel update from CWM to avoid soft bricking. Some s7800B1.4 users have reported
 soft bricking due to severe instability resulting from overclocked speeds. If you have managed to soft brick
 your device, reboot to bootloader mode by using a pin to click the "Reset" button and pressing the "Volume Up"
 button at the same time. RKbatchTool should detect your device. Choose the stock kernel image and install by
 clicking "Upgrade".

- Fixed voltage regulation spikes, reduces reboots upon device wake-up for unstable devices.
- Deactivated cellular radio and GSM software, less power consumption.
- Stock Jellybean boot animation.
- All SUPERCHARGED v2.1 fixes included.

SPECIAL THANKS TO:

- Schattenbanane
- Skelton
- Mr. Tea
- Timber
- death-droid

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--------- NEW OVERCLOCKED KERNEL ---------> Requires RKbatchTool to install.

- Overclocked speeds now visible and active on s7800B1.4 devices.
- New kernel supports initial and current batches of s7800Bs.
 (Thanks to JXD)
- Please see the "PRESET OVERCLOCKED KERNELS" section for overclocked kernels instructions & links.


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CHANGELOGS V2.2:

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SUPERCHARGED v2.2 - CWM UPDATE 2013/12/27

- Fixed voltage regulation spikes, reduces reboots upon device wake-up for unstable devices.
- Deactivated cellular radio and GSM software, less power consumption.
- New kernel supports initial and current batches of s7800Bs.
 (Thanks to JXD)
- Overclocked speeds now visible and active on s7800B1.4 devices.
- Stock Jellybean boot animation.
- All SUPERCHARGED v2.1 fixes included.

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SUPERCHARGED v2.2.1 CWM UPDATE INSTALLATION:

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Important Notes:

- This is only an update and not a base rom installation.
- You need to have the SUPERCHARGED v2.0 BASE ROM installed to utilize this update.
- The update uses CWM Recovery and will NOT wipe your Device :-)
- If you have not installed the SUPERCHARGED v2.0 BASE ROM yet, scroll down for the
 BASE ROM installation instructions.

Please follow the steps below:

1. Download the s7800B_SUPERCHARGEDv2.2_CWM_UPDATE.zip and save it to your device's MicroSD card.

2. Make sure the MicroSD is inserted in your s7800B device.

3. Go to the "Quick Boot" application and choose "Recovery" to reboot to CWM recovery.

4. Once system reboots and CWM loads up, scroll to and select "Install zip from SD-Card", then select
   "Install from External SD".

5. Scroll down the list of files on your MicroSD and select the s7800B_SUPERCHARGEDv2.2_CWM_UPDATE.zip
   file, then select "Yes" on confirmation screen to proceed with update.

6. Once update is complete, system will reboot back into recovery, select "Reboot to system", that should
   complete your CWM update installation.


S7800B_SUPERCHARGED_V2.2.1_CWM_UPDATE.zip (5.2 MB)

http://www.multiupload.nl/4O7V81XODS

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PRESET OVERCLOCKED KERNELS: Updated !!!
For use with RKbatchTool Only !!!
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The latest S7800B SUPERCHARGED v2.2 rom update comes with an overclocked kernel capped at 1,800 Mhz.

Some of you have requested lower caps, while others have requested the original stock speeds.

After downloading and extracting "Overclocked Kernels.zip (19.57 MB)", you will find the following files:

Kernel_OC_1608mhz_DuelMode.img -> Top speed capped at 1,608 Mhz - Stable
Kernel_OC_1704mhz_DuelMode.img -> Top speed capped at 1,704 Mhz - Stable
Kernel_OC_1800mhz_DuelMode.img -> Top speed capped at 1,800 Mhz - Stable
Kernel_OC_1920mhz_DuelMode.img -> Top speed capped at 1,920 Mhz - Experimental
Kernel_StockSpeeds.img -> Top speed capped at 1,608Mhz + all stock speeds - Stable

After completing the v2.2 update procedure above, run the RKbatchTool again, this time select the kernel you
wish to install by browsing to the "Overclocked Kernels.zip" unpacked folder. Click the "Switch" button to go into
bootloader mode, once the number 1 box goes "Green", click "Upgrade" to install the desired Kernel. This will
only update the Kernel portion of your rom and will not erase or wipe your Rom or data :-) After the kernel is
installed, the system will reboot using the kernel you chose while leaving your data and rom intact.


Overclocked Kernels.zip (19.57 MB)

http://www.multiupload.nl/6DQ6CVPBBR




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S7800B SUPERCHARGED v2.1 is out !!! This is a customized version of JXD's Stock Firmware v1.1.4 with several
fixes, enhances, loads of useful applications, and a selection of overclocked kernels.

SUPERCHARGED v2.1 - CWM UPDATE 2013/12/15

(Installé d'abord la V2 qui ce trouve plus bas avant d'installé l'update 2.1)

- Fixed Mali voltage values and power consumption, less heat during intense 3D graphics.
- Fixed USB OTG detection and mounting. Fixes USB Flash Drives access.
- Removed JXD's conflicting code that causes DraStic's initilization to fail.
 (Thanks to Fanatic & Lordus for their valuable input)
- Preliminary USB-BT (Barebone support) Highly experimental !!!

SPECIAL THANKS TO:

- Schattenbanane
- Skelton
- death-droid

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CHANGELOGS V2.1:

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SUPERCHARGED v2.1 - CWM UPDATE 2013/12/15

- Fixed Mali voltage values and power consumption, less heat during intense 3D graphics.
- Fixed USB OTG detection and mounting. Fixes USB Flash Drives access.
- Removed JXD's conflicting code that causes DraStic's initilization to fail.
 (Thanks to Fanatic & Lordus for their valuable input)
- Preliminary USB-BT (Barebone support) Highly experimental !!!

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SUPERCHARGED v2.1 CWM UPDATE INSTALLATION:

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Important Notes:
- This is only an update and not a base rom installation.
- You need to have the SUPERCHARGED v2.0 BASE ROM installed to utilize this update.
- The update uses CWM Recovery and will NOT wipe your Device :-)
- If you have not installed the SUPERCHARGED v2.0 BASE ROM yet, scroll down for the
 BASE ROM installation instructions.

Please follow the steps below:

1. Download the s7800B_SUPERCHARGEDv2.1_CWM_UPDATE.zip and save it to your device's MicroSD card.

2. Make sure the MicroSD is inserted in your s7800B device.

3. Go to the "Quick Boot" application and choose "Recovery" to reboot to CWM recovery.

4. Once system reboots and CWM loads up, scroll to and select "Install zip from SD-Card", then select
   "Install from External SD".

5. Scroll down the list of files on your MicroSD and select the s7800B_SUPERCHARGEDv2.1_CWM_UPDATE.zip
   file, then select "Yes" on confirmation screen to proceed with update.

6. Once update is complete, system will reboot back into recovery, select "Reboot to system", that should
   complete your CWM update installation.


s7800B_SUPERCHARGEDv2.1_CWM_UPDATE.zip (1.81 MB)

http://www.multiupload.nl/QXRIAS7P9I


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Your early Christmas gift is here !!! S7800B SUPERCHARGED v2.0 This is a customized version of JXD's Stock Firmware v1.1.4 with several fixes, enhances, loads of useful applications, and a selection of overclocked kernels.

SUPERCHARGED v2.0 BASE

( A installé avant d'installer l'update 2.1)

- Modified Google Play Market to support "All DPI" apps - No more app DPI restrictions in Play Market.
- Modified Build.prop to simulate Galaxy Note 2 ID - More apps are accessible in Play Market.
- Modified Google Services Framework to emulate Exynos 4xxx series - More apps than Rockchip.
- Fixed External SD card visibility and accessibility.
- Replaced stock launcher with a stable alternative.
- Replaced stock recovery with Androtab's CWM recovery for rockchip devices.
 Future updates, fixes, and patches will not require full system wipes.
- Rom will no longer automatically wipe memory contents after upgrading.
- Updated included apps.
- Added a new cool boot animation :-)
- Customized kernels with different speed caps to choose from.

Additional Notes:
- This version mounts your Micro SD as internal NAND (SDCARD).
- Before upgrading to this version, remove your MicroSD to protect its contents from getting formatted.
- The upgrade process will take longer than usual. This is normal as re-partitioning NAND takes time.
- This is a major release and will wipe your device. Backup important files to MicroSD before proceeding.
- Future updates/fixes will not require a full system wipe unless absolutely necessary.

SPECIAL THANKS TO:
- Schattenbanane
- Skelton
- death-droid

And for those who have kindly donated, Thank You :-) Your donations are always appreciated.

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CHANGELOGS:
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SUPERCHARGED v2.0

- Modified Google Play Market to support "All DPI" apps - No more app DPI restrictions in Play Market.
- Modified to Build.prop to simulate Galaxy Note 2 ID - More apps are accessible in Play Market.
- Modified to Google Services Framework to emulate Exynos 4xxx series - More apps than Rockchip.
- Fixed External SD card visibility and accessibility.
- Replaced stock launcher with a stable alternative.
- Replaced stock recovery with Androtab's CWM recovery for rockchip devices.
 Future updates, fixes, and patches will not require full system wipes.
- Rom will no longer automatically wipe memory contents after upgrading.
- Updated included apps.
- Added a new cool boot animation :-)
- Customized kernels with different speed caps to choose from.

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INSTALLATION:
I CANNOT STRESS ENOUGH HOW IMPORTANT IT IS TO FOLLOW
THE STEPS BELOW !!! FAILURE TO DO SO WILL LEAD TO
UNEXPECTED RESULTS !!!
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Traduction FR ICI
(Merci a Luke_fr et à ceux qui l'ont aidé)
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Important Notes:

- This version mounts your Micro SD as internal NAND (SDCARD).
- Before upgrading to this version, remove your MicroSD to protect its contents from getting formatted.
- The upgrade process will take longer than usual. This is normal as re-partitioning NAND takes time.
- This is a major release and will wipe your device. Backup important files to MicroSD before proceeding.
- Future updates/fixes will not require a full system wipe unless absolutely necessary.


Please follow the steps below: - This is a one time procedure. You will not need to repeat it again.

1. Download S7800B_SUPERCHARGED_v2.0_OC_Reparted_Ext2Int _CWM_MrktFix.zip from the link below.

2. Extract zip, you will find three folders, "RKbatchTool", "Firmware Image", and "Overclocked kernels".

3. REMOVE YOUR MICRO-SD FROM YOUR DEVICE !!! MAKE SURE YOUR DEVICE IS FULLY CHARGED !!!

4. Open the RKbatchTool and select the update.img from the "Firmware Image" folder.

5. Connect your device and click "Switch" on the RKbatchTool.

6. Once the number 1 box turns green, click "Upgrade". Process will take longer than usual.

7. After upgrade is complete, system will reboot to CWM-Recovery. Close the RKbatchTool. Rom updates will no
   longer result in automatic wiping of data.

8. To navigate through the recovery menu, use the "Volume UP" and Volume DOWN" buttons to scroll through the
   selections and the "Power Button" to click your selection.

9. IF YOU HAVE NOT REMOVED YOUR MICRO-SD, DO IT NOW !!!

10. Select "wipe data/factory reset". You will be presented with a confirmation menu, select "Yes". This will
     attempt to wipe your device. This will take some time and you may be presented with errors at the bottom
     of the screen, simply ignore them.

11. Now we need to fix your internal 1.07GB of storage which will later be mounted as your External SD. Go
     to "mounts and storage", select it, then select "mount USB storage". This will mount your internal
     storage as a USB Storage Device in Windows. Windows will detect an unformated drive and will give you
     the option to format it. Please format the newly detected drive using the fat32 disk format. By doing this,
     you are activating the newly partitioned 1.07GB internal storage which was not visible in the previous
     SUPERCHARGED version.

12. Once Windows completes formating the drive, go back to your your device and select "Unmount".
     Then select "format /sdcard" -> "Yes"

13. Scroll to and select "+++++Go Back+++++", then again, go to "wipe data/factory reset" and select it.
     -> "Yes" to wipe device again.

14. After the wipe is complete, scroll to and select "reboot system now". CWM will detect an error with root su
     access and will offer to fix it, select "Yes". System will then reboot. Be patient.

15. 1st reboot will take approx 5 mins. Once that is done, leave the device for another 5 mins as hardware ID
     is being changed to Exynos 4xxx series. During this process, several apps will request SuperSU for root
     access, simply grant them access and leave the device to run.

16. After the 5 minutes are over, your device is now SUPERCHARGED !!! Shutdown your device.
     Insert your Micro-SD card. Then switch on your device again. Your device is now ready :-)

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PROBLEMES CONNUS

J'ai la console qui s'éteint dès que je clique sur switch, écran noir et il faut maintenir le bouton power pendant plusieurs seconde pour la rallumer.

SOLUTION ICI (Merci a Luke_fr)
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OVERCLOCKED KERNEL CUSTOMIZATION:
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S7800B SUPERCHARGED v2.0 rom comes with an overclocked kernel capped at 1,800 Mhz.

Some of you have requested lower caps, while others have requested the original stock speeds.

After downloading and extracting "S7800B_SUPERCHARGED_v2.0_OC_Reparted_Ext2Int _CWM_MrktFix.zip"
, in the "Overclocked Kernels" folder, you will find the following files:

OC_1704Mhz_Kernel.img -> Top speed capped at 1,704 Mhz - Stable
OC_1800Mhz_Kernel.img -> Top speed capped at 1,800 Mhz - Stable
OC_1920Mhz_Kernel.img -> Top speed capped at 1,920 Mhz - Experimental
Stock_1608Mhz_Kernel.img -> Top speed capped at 1,608Mhz + all stock speeds - Stable

After completing the installation procedure above, run the RKbatchTool again, this time select the kernel you
wish to install by browsing to the "Overclocked Kernels" folder. Click the "Switch" button to go into bootloader
mode, once the number 1 box goes "Green", click "Upgrade" to install the desired Kernel. This will only update the
Kernel portion of your rom and will not erase or wipe your Rom or data :-) After the kernel is installed, the system
will reboot using the kernel you chose while leaving your data and rom intact.

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EXPERIMENTAL OVERCLOCKED KERNELS:

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Exactly what the title says... These are experimental kernels used for testing purposes only. Use at your
own risk !!!

OC_1800Mhz_kernel_MODv0.1.img (11.44 MB)

http://www.multiupload.nl/THNOZA5MN9

To all those that have been experiencing capped speeds below the reported maximum, please try
the experimental kernel attached above. I've made some modifications to trigger a different
behavior from the ACT8846. Just download the img and flash it using RKbatchTool. Please report
back with your findings.

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This is not an official release. It is a modified version of Stock FW 1.1.4. If for whatever reason, the image fails on your device, just flash the original JXD firmware v1.1.4 to restore capped speeds and normal operation.

ALWAYS MAKE SURE YOUR DEVICE IS FULLY CHARGED BEFORE YOU FLASH ANY FIRMWARE IMAGES

As always, your kind feedback is always appreciated to make this ROM better and faster.

S7800B_SUPERCHARGED_v2.0_OC_Reparted_Ext2Int _CWM_MrktFix.zip (406.12 MB) STABLE

http://www.multiupload.nl/PS6SXDGXRI

Source : http://boards.dingoonity.org/jxd-devices/s7800b-supercharged-v2-0-oc-reparted-ext2int-cwm-mrktfix/

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S7800B SUPERCHARGED is here. This is a customized version of JXD's Stock Firmware v1.1.4 with several fixes, enhances, loads of useful applications, and an overclocked kernel.


SUPERCHARGED v1.0

- CPU overclocked to 1,800 Mhz with 4 active cores.
- GPU overclocked to 600 Mhz with 4 active cores.
- Updated Mali drivers, set initial GPU clock, fixed mali_dvfs values, and corrected voltage tables.
- Re-sized System partition to 1GB, Userdata partition to 5.5GB, and NAND Storage to 1GB.
- Modified vold.ftab to switch SD-Card to MicroSD and NAND to External SD-CARD.
- Updated WIFI drivers and fixed TCP buffer values -> Faster WIFI ~ Approx 28Mbps
- Added additional permission XMLs to increase Market compatibility. (Experimental)
- Added several tools to assist you in customizing your device further ;-)

------JXD's stock v1.1.4 Update------

- Updated charging rate.
- De-activated Micro SD upgrade method.
- Fixed root and SuperSU RW access.
- Optimized audio output to reduce noise and static.
- Several USB-OTG optimizations.
- Updated several system apps.

Additional Notes:

- Market compatibility is still not stable and not all applications are accessible.
- This version mounts your Micro SD as internal NAND (SDCARD).
- Before upgrading to this version, remove your MicroSD to protect its contents from getting formatted.
- Once Recovery finishes formatting data, cache, and dalvik, you may safely insert your Micro SD after reboot.
- The upgrade process will take longer than usual. This is normal as re-partitioning NAND takes time.

SPECIAL THANKS TO:

- Schattenbanane
- Skelton
- death-droid

S7800B_SUPERCHARGED v1.0 _FW v1.1.4_ CPU-1800mhz_Reparted_Ext2Int.zip (354.96 MB) STABLE

http://www.multiupload.nl/F8ERXUUOVX


Source : http://boards.dingoonity.org/jxd-devices/s7800b-supercharged-v1-0-fw-v1-1-4-cpu-1800mhz-reparted-ext2int/

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Installation:

- Included RKbatchTool v1.7 with English Language Support.
- Included all necessary drivers.
- Simply follow the exact same steps to upgrade to JXD's Official Firmware to apply this firmware.

This is not an official release. It is still experimental. If for whatever reason, the image fails on your device, just flash the original JXD firmware v1.1.4 to restore capped speeds and normal operation.

ALWAYS MAKE SURE YOUR DEVICE IS FULLY CHARGED BEFORE YOU FLASH ANY FIRMWARE IMAGES

Tuto Rockchip Batch Tool

1. Unrar everything.
2. Open RkBatchTool and select your firmware.
3. Connect the JXD S7800B via USB. One of your USB ports should change its color to pink.
4. Turn the device off normally.
5. Hold the volume+ and press the power button. It will seem like the device doesn't turn on, but it will actually boot in recovery mode.
6. Your computer should recognize that a rk3188 device is connected - the USB port will turn to green. If it doesn't, install the drivers that are with the RkBatchTool.
7. Upgrade your firmware.