[ CONSULTA ] usb no reconoce pen, ni tarjeta, ni teclado-funda

[bmw530xd.apac]

Hola, muy buenas.

A ver si me podéis echar un cable con el siquiente problema. Tengo una tablet Wiipad N97, cuyas características son:

* CPU:Nvidia Tegra T20
* CPU Speed: 1Ghz Dual core
* Memory capacities: DDR1GB
* Hard drive: 8GB Inand
* Operating system: Android 2.2
* Chipsets: Nvidia tegra T20 dual core 1GHZ
* Resolution: 1024*768
* Display: 9.7" LG IPS Screen 300 mint
Main IC (CPU)
Nvidia tegra 250 ARM Cortex-A9 Dual Core 1Ghz
RAM
DDR2 1GB
Screen
9.7 inches, 1024 X 768 resolution, IPS Capacitive multi-point touch screen
Nand Flash
8GB
Memory card
2-32 Micro SD/TF Supported
Wi-Fi
High performance 802.11b/g
Bluetooth
Bluetooth 2.1 + EDR
3G
Support Exteranal 3G Modem
CAMERA
1.3 million pixels
G-SENSOR
Internal G- Sensor
OS
Android 2.2
Language
Chinese Simplified, Chinese Traditional, English, French,
German, Italian, Japanese, Korean, Polish ,Russian ,Spanish.
Browser
Opera, UCWeb, SkyFire, Dolphin
Online entertainment
Support Online video, online TV, online Movie, Online Music, Online Radio.
Office software
WORD, EXCEL, POWERPOINT, PDF, TXT.
Games
3D Game can be supported by internal 3d acceleration of hardware.
Extend
There are more than 20 thousands kind of free software in Android Market
Audio formats support
MP3,WMA,MP2,OGG,AAC,M4A,MA4,FLAC,APE,3GP,WAV and songs list
Sound
above 90dB
Recording
MP3,WMA formats recording
Other
LRC,ID3 Tag searching, searching by folders, Album, self-definition audio effect
Audio chip
Super Cirrus audio coding chip
Video formats support
AVI H.264, DIVX, XVID, rm, rmvb, MKV H.264, WMV, MOV, MP4 H.264, MPEG, DAT,
VCD, VOB, DVD, PMP, MPG, FLV
H.263,H.264, ASF, TS, TP, 3GP, MPG and more can be downloaded from internet.
Playing ability
Up to 1920X1080, 30MBPS max
Video output
HDMI 720P and 1080P full HD output, and Video Output (AV Output)
Files reading
Support fonts changing, text colors, background colors, files folder,
listening the songs, browsing pictures, reading texts book
Picture format support
JPG, BMP, PNG, GIF, etc. multi formats revolving/lantern side and up to
4096*4096 resolution
Speaker
1 speaker
OTG function
Supported hard disks, digital camera, mobile phone, USB flash drive, card reader,
connect to printer.
HDMI
Mini HDMI port, support HDMI 1.3,support full screen output to HDMI Devices
USB
USB2.0
HOST
HOST1.1 connect with mouse, keyboard, USB flash drive.
Charging
Small type charging port, DC15V input
Earphone/Video port
3.5mm earphone + composite video output
Size
246×190×12mm
Buttons
Power/sleep, Menu, Back, Home.
Weight
670g
Battery
7000 mAH / 7.4V Li-poly battery
Work tim
Internet with wifi on 6-8 hours Music - 10 hours, with earphones 8 hours. HDMI output playing time 8 hours.
Temperature
Less than 30 degrees.


PROBLEMA:
He conectado pen drive, formateado a fat-32 y no se ve contenido, incluso he probado a conectarlo en puerto mini usb y no veo el contenido del disco. Si funciona, si conecto la tablet por el puerto mini usb al pc, veo el contenido en el pc, de la memoria de la tablet.

Pero si conecto un pen, disco duro externo, teclado o ratón, nada de nada. Con el disco duro se enciende la luz pero no ve nada.

La verdad he estado mirando y hablan de que el puerto usb debe ser OTG, y viendo las características del equipo la tiene.

Bueno no me extiendo más y por favor a ver si me podéis ayudar.