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problem with rk3188 tablet(u35gt2)

cant enter/stay flash mode

lavanat0r

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2014/01/01

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2014/01/01 - 14:25

hello.

i tried to make custom rom and something went wrong and i put it to my tablet.

then i'm unable to boot and cant enter to flashmode.

i have black screen as same when i put custom rom into my tablet.

the problem:

i power my tablet off(by holding power button about 10 secs) the i open RKAndroidToolv1.37 it says "No Found..." then i hold power button and volume(+) while holding them i plug usb cable then RKAndroidTool says like half a second "found RKAndroid ..." and then it goes back "No Found ...".

and thats the problem this tablet cant enter/stay in flashmode.

Oma7144

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2014/01/01 - 14:36

Looks like there is no kernel on the NAND to start.

You need to bring the tab in Mask-Rom mode: http://www.youtube.com/watch?feature=player_detailpage&v=wMl6IbYBLtU

- Oma -

Per aspera ad astra, we rock the Tablets !

If you like our firmwares, please consider making a donation to support our work.
Thank you!

lavanat0r

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2014/01/01 - 15:01

thanks for theplay this is what i done(i plugged usb out while flashing :D) but what i need to there ? what is the shorting mean ?

Oma7144

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2014/01/01 - 15:08

I don't know your tab. The video is for a similar RK3188 tab called Chuwi V88.

Pls find below some written instructiuons for the V88.

Together with the Video it should be possible for you to recover your tab. Good luck!

- Oma -

Part 1: Open v88 and short out NAND module
1. Unplug usb and power charger from v88.
2. Perform a "Deep Power Off" by pressing the Power button for at least 20 secs
3. Start up both RKBatchTool and RKAndroidTool using admin privileges
4. Open v88 casing
5. Power on v88
6. Connect v88 to PC using USB
7. Locate pins 8 & 9 on the #1 NAND module and short them out using a small pin, paperclip or small screwdriver. If shorting out pins 8 & 9 don't work, try shorting out pins 7 & 8
8. By shorting out the NAND module, you have put your tablet in "Mask ROM Mode." The RKAndroidTool should now indicate your tablet is recognized by showing the following message: "Found RKAndroid MaskRom Rock Usb"

Part 2: Erase corrupt NAND memory
1. Click on the #1 box within RKAndroidTool (the Loader box)
2. Click on "EraseIDB"
3. Wait for the RKAndroidTool to indicate the EraseIDB was successful
4. You can now close out RKAndroidTool

Part 3: Reflash firmware/ROM onto v88
1. Load firmware/ROM into RKBatchTool
2. RKBatchTool should have it's #1 Box highlighted in blue
3. Click Flash ROM
4. Done

The following users say thank you to Oma7144 for this useful post:

admin, lavanat0r

Per aspera ad astra, we rock the Tablets !

If you like our firmwares, please consider making a donation to support our work.
Thank you!

lavanat0r

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2014/01/01

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2014/01/01 - 16:01

hello.

i tryed to connect 7to8 and 8to9 nothing happend tried it on 2 roms.cube u35gt2 system looks similar to v88 but i recognised that when i put power cabel on, and first done Deep Power Off and then holded power and volume(+) it stays in flashmode but when i run RKAndroidTool without "loader" its says ERROR:download file failed :(.

can you help me litle bit more

lavanat0r

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2014/01/01 - 18:46

thanks you soo much finaly got my tab work .. this method what you gave me + my method = :D.

thanks you thanks you .. and happy new year.

also downloaded oma firmware and sucessfully installed

Oma7144

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2014/01/01 - 19:55

Happy to hear that!

- Oma -

Per aspera ad astra, we rock the Tablets !

If you like our firmwares, please consider making a donation to support our work.
Thank you!

lavanat0r

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2014/01/01

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2014/02/24 - 14:39

hi again.

now i have littlebit difference broblem.

when i trying to enter normally to flash mode always in rk patch tool connected device turns blue and it enters after 7 secconds while holding power button and volume up(+) and i dont even need to hold volume up(+) it enters automaticly when usb cabel is connected.

thats too wierd.

oky when its in flashmode then i can change my rom but no matter what i do restore or upgrade always i see error "Prepare IDB Fail".

with "RKAndroidTool" i can press button "ereaase IDB" but it dont erease it .. it just showing me "IDB ereased seccess".

only one time i had green colored connected device then i'm abled to erease idb and restore device but device had black screen and screen backlight was on.

what i'm trying to do is to just abel to press button "Upgrade" and it goes successfully without any errors.

lavanat0r

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2014/02/24 - 15:14

oky this time i'm abled to restore but noow i'm having tis image when i try to boot:

http://www.androidrootz.com/2012/08/how-to-get-rid-of-red-triangle-dead.html.

how i can get rid of it?

lavanat0r

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2014/01/01

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2014/02/24 - 16:09

anyone know why i'm getting always maskrom mode ?

i want normal flash mode.. why ?

answer: with maskrom mode i got always "Download idb Fail" and i'm not able to try with normal flash mode

twingo16s

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Forum Posts: 48

Member Since:
2014/04/15

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2014/06/03 - 21:21

Oma7144 said
I don't know your tab. The video is for a similar RK3188 tab called Chuwi V88.

Pls find below some written instructiuons for the V88.

Together with the Video it should be possible for you to recover your tab. Good luck!

- Oma -

Part 1: Open v88 and short out NAND module
1. Unplug usb and power charger from v88.
2. Perform a "Deep Power Off" by pressing the Power button for at least 20 secs
3. Start up both RKBatchTool and RKAndroidTool using admin privileges
4. Open v88 casing
5. Power on v88
6. Connect v88 to PC using USB
7. Locate pins 8 & 9 on the #1 NAND module and short them out using a small pin, paperclip or small screwdriver. If shorting out pins 8 & 9 don't work, try shorting out pins 7 & 8
8. By shorting out the NAND module, you have put your tablet in "Mask ROM Mode." The RKAndroidTool should now indicate your tablet is recognized by showing the following message: "Found RKAndroid MaskRom Rock Usb"

Part 2: Erase corrupt NAND memory
1. Click on the #1 box within RKAndroidTool (the Loader box)
2. Click on "EraseIDB"
3. Wait for the RKAndroidTool to indicate the EraseIDB was successful
4. You can now close out RKAndroidTool

Part 3: Reflash firmware/ROM onto v88
1. Load firmware/ROM into RKBatchTool
2. RKBatchTool should have it's #1 Box highlighted in blue
3. Click Flash ROM
4. Done

I did the steps and it worked, now I need the ROM not get

Especificación 3066-HD
CPU Rockchip3066 de la corteza A9 1.5GHZ de doble núcleo Maili-400GPU
OS Android OS 4.1.0
idiomas
Memoria DDR3 1GB
Dispositivo de almacenamiento 8GB HDD
Tarjeta externa del TF, capacidad máxima de 32GB
Bluetooth SÍ
Gravedad Fast 4-dimensional G-sensor
LCD 9,7 pulgadas capacitiva de alta definición con pantalla táctil de 5 puntos, 1024 * 800 píxeles
WIFI WIFI: Red inalámbrica de IEEE802.11b/g/n
Software de Office Soporte de Word, Excel, PDF
3G External Apoyo
Juegos en 3D Apoyo
Tienda Play Apoyo
Vídeo tiempo de juego 5.5h
Puerto I / O Puerto USB * 1, auricular * 1, DC-IN JACK * 1, lector de tarjetas del TF * 1, HDMI * 1
Audio 3,5 mm para auriculares
Estéreo de alta calidad altavoz
Micrófono incorporado
Archivo multimedia Formatos de archivo de audio compatibles: MP3/WMA/APE/FLAC/AAC/OGG/AC3/WAV
Formatos de archivos de vídeo compatibles: Max.1920 * 1080RV, H.264, VC-1, H263, MPEG4, VP6, MKV (H.264 HP),
AVI, RM / RMVB, FLV, MPEG-1, MPEG-2
Formatos de archivo de la foto: JPG, JPEG, BMP y PNG.
Cámara Resolución principal de la cámara de hasta 2 megapíxeles (cámara dual)
Adaptador de corriente Entrada 100-240V Salida: DC 9V 1.5A
batería 6500MAH Li-ion
Tamaño 245 * 190 * 15 mm
Peso neto 570g
Peso bruto 970g
Otro tipo de apoyo Youtube / Facebook / Twitter / MSN / AndroidMarket / Skype / Calculadora / mapas de Google Mail / Google / iReader / Quick Office
Color blanco
¿Qué hay en la caja 1 * Android 4.1 9.7 "Tablet PC
1 * Cargador de la energía
2 * Cable USB para conexión a PC

twingo16s

Active Member

Forum Posts: 48

Member Since:
2014/04/15

Offline

2014/06/07 - 03:50

Oma7144 dijo
no sé tu cuenta. El video es de una pestaña RK3188 similar llamado Chuwi V88.

Pls encuentra a continuación algunos instructiuons escritas para el V88.

Junto con el vídeo, debería ser posible para que usted pueda recuperar su cuenta. ¡Buena suerte!

- Oma -

Parte 1: Abrir V88 y corta módulo NAND cabo
1. Desenchufe usb y cargador de corriente de V88.
2. Realizar un "Deep Power Off" pulsando el botón de encendido durante al menos 20 segundos
3. Inicie tanto RKBatchTool y RKAndroidTool utilizando privilegios de administrador
4. Carcasa V88 abierto
5. Encienda V88
6. Conecte V88 a PC mediante USB
7. Localice los pines 8 y 9 en el módulo NAND # 1 y corta a cabo utilizando una aguja o un clip de papel o un destornillador pequeño. Si un cortocircuito en los pines 8 y 9 no funciona, pruebe con un cortocircuito en los terminales 7 y 8
8. Por un cortocircuito en el módulo NAND, que han puesto su tablet en el "Modo Máscara ROM." El RKAndroidTool ahora debe indicar su tableta reconoce que muestra el siguiente mensaje: "Se ha encontrado RKAndroid MaskRom Roca Usb"

Parte 2: Borrar la memoria NAND corrupta
1. Haga clic en la casilla # 1 dentro RKAndroidTool (la caja Loader)
2. Haga clic en "EraseIDB"
3. Espere a que el RKAndroidTool para indicar el EraseIDB tuvo éxito
4. Ahora puede cerrar RKAndroidTool

Parte 3: Cómo Flashear el firmware / ROM en V88
1. Cargar firmware / ROM en RKBatchTool
2. RKBatchTool debe tener es # 1 Caja resaltada en azul
3. Haga clic en la Flash ROM
4. Hecho