JXD Game Pad 3 - S7800B - RileyROM 1.2 KitKat

[kristianity77]

Have you tried flashing the KitKat ROM again to see if you can get back to it?

Yes, im always flashing the kit kat rom first as its the only ROM that will currently go on to the device. Then once that is installed, im wiping the NAND with the tool, then opening RKBatchtool to put back on one of the older firmwares and it always fails.

The Kit Kat rom goes on without fail and works

[rrileypm]

Have you tried goin back to my 1.1 ROM? Make sure the loader is checked.

[rrileypm]

It may be that the batch tool isn't flashing the loader.

[kristianity77]

Have you tried goin back to my 1.1 ROM? Make sure the loader is checked.

No, but ill download that and give it a try

[kristianity77]

Tried to download 1.1 a couple of times now and it seems the Zip is corrupt. Tried unzipping with Winzip, 7Z and winrar but it wont happen. Says unsupported compression method and hangs.

[SEA]

Thank you for your FW

I and many users try your firmware , we found some problems connecting headphones ( no sound ) , we tried to move keymapper from firmware 1.5 but we fail . ART when using some applications do not run from SD Card. During the program separate ART happen graphics bugs in GTA SA game or normal browsing video AVI .

We are pleased that there is such a person who care about the fate S7800B may information that we were able to obtain and pass to a you in any way help you in the future , although even now 4.4 looks nimble despite hastily processor 1.4 Ghz (we understand the problem and wait for the kernel patch )

Thank you for the good work

[rrileypm]

Tried to download 1.1 a couple of times now and it seems the Zip is corrupt. Tried unzipping with Winzip, 7Z and winrar but it wont happen. Says unsupported compression method and hangs.

I just zipped the 1.1 ROM again and updloaded it. Just download it again.

[rrileypm]

I and many users try your firmware , we found some problems connecting headphones ( no sound ) , we tried to move keymapper from firmware 1.5 but we fail . ART when using some applications do not run from SD Card. During the program separate ART happen graphics bugs in GTA SA game or normal browsing video AVI .

We are pleased that there is such a person who care about the fate S7800B may information that we were able to obtain and pass to a you in any way help you in the future , although even now 4.4 looks nimble despite hastily processor 1.4 Ghz (we understand the problem and wait for the kernel patch )

Thank you for the good work

You're welcome. As you can see, there are challenges to flashing back to Jellybean...so I hope you enjoy the ROM as it is.

I'm hoping JXD will release an update soon.

[kristianity77]

You're welcome. As you can see, there are challenges to flashing back to Jellybean...so I hope you enjoy the ROM as it is.

I'm hoping JXD will release an update soon.

Success! Rolling back to RileyRom 1.1 is the way to go. Worked first time for me and from there I could go to any other ROM I wanted with instant success. Seems the issue then is going straight from RileyRom 1.2 and then back without going to 1.1 first. At least that is what worked for me.

Thanks very much for all your help on this, its much appreciated! One donated beer coming your way

[rrileypm]

Let me explain what happened, so others can learn.

Normally, you don't have to roll back to a previous ROM to unbrick a tablet, but there are some things about KitKat that are way different.

When you flash a KitKat ROM, there is an extra metadata partition in the parameter file that is created...and is not compatible with Jellybean ROM's. The boot loader is designed to handle this new partition, so it is specific to the KitKat ROM.

Because the metadata partition is present, when you try to flash a Jellybean ROM over an existing KitKat ROM, things don't mesh...and causes a brick state.

The RKBatchTool is designed to flash a one file update.img...not everything split out like RileyROM's. Depending on the settings within the update.img and parameters, it may or may not flash the boot loader file with the rest of the ROM.

What you had was the KitKat loader stuck on the ROM and no way to flash the Jellybean loader.bin without using the RileyROM flash tool to do it.

Once the KitKat loader was cleared out, and replaced with the Jellybean loader...you were back on track with flashing back to Jellybean.

One thing to watch when flashing back to Jellybean is that since the KitKat ROM formatted the partitions differently, you can only use the KitKat flash tool to erase IDB to clear out the metadata partition. Then, when you fun the Jellybean flash tool, erase IDB will format everything back to what Jellybean needs to run. This is also an important step.

So, in the future...remember to always erase IDB before flashing a whole ROM (not necessary with only flashing a kernel). If you decide again to go back to Jellybean...first erase IDB from the KitKat ROM flash tool, then open the Jellybean ROM...check the loader.bin line, and erase IDB before flashing one more time. That should prevent you from bricking.

I'm quite happy with this KitKat version on my tablet...so I plan on sticking with it. My son hasn't had any problems running the games he likes on it this way.

As I said...I sure hope that JXD will release a KitKat update soon.

[barnoqc]

i love 1.1.... i give a try tomorrow...

do you think that a ''lite version'' can be usefull...

be removing that crap :

BooksProvider.apk
Chrome.apk
ChromeBookmarksSyncAdapter.apk
Galaxy4.apk
Gmail.apk
HoloSpiralWallpaper.apk
MagicSmokeWallpapers.apk
OpenWnn.apk
PhaseBeam.apk
PinyinIME.apk
RkApkinstaller.apk
RKEBookReader.apk
RkExplorer.apk
SuperSU.apk
Talk.apk
WifiDisplay.apk
KeyMappingUpdater.apk
Mms.apk
GoogleEars.apk



and optimization like


- Deactivated cellular radio and GSM software





thanks for your rom !!!!!!!!!!!!!!!!! Good and stable !

I like the possibility of choosing user space ! a MUST !

[rrileypm]

I've been testing mine also.

My first ROM's were not as aggressive with debloat, but I'm now removing most of that crap, now.

I may do a complete update, soon.

Thanks for the feedback!!!!!!

[badbojus]

hello, so i still can not install kitkat rom anymore,every time it flashes without errors but cant get out of recovery, i ofcaure erased nand and tryed all other ways i know.. any suggestion ? also tryed from rilay v.1.1 go to kiktat and got same thing, tryed also flas misc.img from pipo forums, tryed misc from v1.1 so no luck...

i want still install this rom, since i found nice nav bar app ...

[pogodancer]

Thanks to kristianity77 for checking the problem of going back from Kitkat to Jellybean. I had exactly the same problems and symptoms like you. First I installed the Kitkat stockrom and after I changed to Riley's Kitkat-rom. Then I could not flash back to Jellybean with the RKbatchTool (when I saw the first time a blue button instead of green).

Thanks to Riley for your post #40. So it was easy to go back to my Jellybean stockrom. That's what I did after having flashed to Kitkat:

1. Starting the RK flash tool for Kitkat (inside Riley's Rom download) and checking only the first item (loader).
2. Connect the device via USB and hold the power button (maybe vol.+ also) until the device is found by the tool.
3. Erase Nand (IDB)
4. Open the RKandroidTool (Flash Tool for Jellybean), check first item (loader), connect device and erase Nand (IDB)
5. Load your Jellybean rom into Jellybean RKandroidTool and flash rom.

That's it. Now I am happy again with my Jellybean stockrom. The JXD-Kitkat-rom is a bit too beta for me.

Thanks again to kristianity77 and Riley.

[Edzward]

Ooops...
Can't install. Got my device bricked right now.
I'm getting an error at "Start Download [whatever]"

Here is the log

20:50:35 382    INFO:Start to erase NAND20:50:35 385    INFO:Start to lower format
20:50:45 416    INFO:Lower format OK
20:50:45 428    INFO:Erasing IDB OK
20:51:32 585    Loader Device Path(\\?\USB#VID_2207&PID_310B#6&38A36D0C&0&6#{a5dcbf10-6530-11d2-901f-00c04fb951ed}),ThreadID=7668
20:51:32 588    INFO:Start to run
20:51:32 590    INFO:Start to test device
20:51:32 596    INFO:Test device OK
20:51:32 600    INFO:Start to download IDB
20:51:32 604    Flash Chip Information:
20:51:32 605    NO        SIZE(MB)    Manufacturer
20:51:32 607    ----------------------------------------------
20:51:32 609    0        8528MB    HYNIX
20:51:32 611    ----------------------------------------------
20:51:32 612    INFO:BuildFlashStateMap start
20:51:32 615    INFO: FindAllIDB start
20:53:33 342    INFO:UpdateIDBData start
20:53:33 344    ERROR:GetWriteBackData-->ReadMultiSector failed,Err(-2)
20:53:33 346    ERROR:GetWriteBackData-->ReadMultiSector failed,Err(-2)
20:53:33 348    ERROR:GetWriteBackData-->ReadMultiSector failed,Err(-2)
20:53:33 350    ERROR:GetWriteBackData-->ReadMultiSector failed,Err(-2)
20:53:33 352    ERROR:UpdateIDBData-->GetWriteBackData failed
20:53:33 353    ERROR: UpdateIDBData failed
20:53:33 355    Error:Download IDB failed
20:53:33 360    INFO:LoaderThread failed
20:53:33 363    ERROR:Run failed

Any tips?

Thanks in Advance.