[Miscellaneous Android Development] raganius:
Quickview Slate2 / a-rival PAD NAV-PA80 firmware upgrade

I have found your post and I thought my discovery would be interesting for you. I found that my 8" View Quest Slate2

viewquest.co.uk/shop-product-detail.php?pID=6

Telechips 8902 (720MHz) ARM11

8" Transflective Capacitive Screen

Multi-touch

800 x 600 Resolution

Google Android 2.1 OS

Built-in 1W Speaker

360 Degree G-Sensor

1080P HDMI Output

256Mb SDRAM

2GB Internal Storage

Micro-SD Card Slot

USB 2.0 High Speed OTG

4500mAh - 5 Hours Battery Life

and a-rival PAD NAV-PA80 WiFi

a-rival.de/de/a-rival-pad/a-rival-pad-80.html

Prozessor Telechip CPU 800Mhz

Betriebssystem Android 2.1

Speicher 8 GB interner Speicher, 256 MB RAM

Gewicht max. 600g

Digitale Speicherkarte Micro SD-Card slot, max. 32GB

Display 8" Kapazitives Dual-Touch Display

Auflösung 800 X 600 Pixel (Seitenverhältnis 4:3)

LAN WiFi WLAN 802.11b/g

GPS integrierter 42 Kanal GPS-Empfänger

Anschlüsse 1080p HDMI-Anschluss, USB-Anschluss, Kopfhörer-Anschluss

Audio eingebauter Lautsprecher und Mikrofon

Tasten 4 Hardkeys für die wichtigsten Schnellzugriffe

G-Sensor 360° G-Sensor (Lagesensor für Spiele und Bildrotation)

Akku 4.500 mAh Li-Akku

Software Umfangreiche Apps und Navigationssoftware Maptrip Android mit Kartenmaterial D-A-CH vorinstalliert

have the same specifications, Android version 2.1 Eclair & build description contains EM83 in both devices and they look identical!

When I connect mine to Windows 7 PC and set the mode on tablet that I could reach its internal storage, in the device manager properties for USB device you can find name MID EM83 and EM83 is also mentioned in the Build description of both these tablets. I think MID EM83 is the clue to find the real manufacturer of this 8" tablet with Telechips 8902 CPU. Emdoor has named its tablets EM51 & EM73, so it seems that EM83 and Slate2/a-rival NAV-80/83 are made by Emdoor too. However, I couldn't find proof of it yet. I have searched google and read slatedroid.com & androidtablets.net, but I couldn't find who is the real manufacturer or confirmed working Android 2.2 or 2.3 firmware or custom firmware ROM's. Maybe you, a person who reads this post, know? I thought it is obvious that ViewQuest Slate 8 & a-rival NAV-PA80 have been made by the same manufacturer and I tried to update ViewQuest with update provided by a-rival for NAV-PA80/NAV-PA83

a-rival.de/de/downloads/category/23-update-2-fr-a-rival-pad-80-83.html

to update my 8" View Quest Slate2 AND IT WORKED!!!. I believe this proves that they both are made by the same manufacturer or on the same platform designed for Telechips 8902 CPU. I am sure that there are other users who have 8" tablet with Telechips 890x CPU like ViewQuest Slate2 or a-rival PAD NAV-PA80 who do search for modified firmware ROM's to update their device from Android 2.1 to 2.2 or even 2.3 version.

Because you have CyanogenMod 7/ClockworkMod Recovery 5 for a-rival PAD NAV-PA80, I believe it will work on my Slate2 with NAV-PA80 firmware.

Because you mentioned before in this forum ROM's that Android 2.2/2.3 ROMS are available for other tablets with Telechips 8902 CPU I believe it is possible to modify them for this tablet too.If you know were to find these custom ROM's - please let us know!

Update: I have followed given instructions by fun_ & have successfully installed CyanogenMod7 on Slate2 tablet that was previously updated with a-rival PAD NAV-PA80 firmware. I believe you can install CyanogenMod7 direclty on Slate2 Android 2.1 firmware & it is not required to update it with updated a-rival PAD NAV-PA80 2.1 firmware (although it is newer version and runs more smoothly) in order to install CyanogenMod7. This was my first installation of modified ROM and it was succesfull and I am excited! Cyanogen looks great, although as mentioned in the first post hardware accelerated video doesn't work - I am sure it would run a lot smoother with internal GPU enabled. There is one major problem though: the tablet doen't wake after going to sleep\standby mode. I pressed 'Power' button, but it doesn't react. I thought that it crashed, but when I press reset button I can see ussual-home-screen for a part of a second, before the tablet restarts. I believe it just feels like crashed because LCD turns off and the power button doesn't work, while it actually just don't respond to power button/doesn't wake up from the standby/sleep mode. I don't know how to fix it, but I believe some of you may know. I will update this post if I find a solution.