As a pretty neat UMPC, the Teso J-10 (aka iiView M1Touch and also sold as a “Windows 7 Tablet” by Tablet Store UK currently – I’m not aware of any other UK importers) is already well equipped for most purposes. Most of the time, people want to add bluetooth, 3G and so forth; those are already present. However, it’s interesting to get a look inside and see how the J-10 is assembled.
The J-10 casing is really quite clever; unlike most tablet machines it’s built along good, solid OEM practises and as such, is easy to open with accessible components.
First, shut down the computer (do it from the start menu, don’t trust the power switch in case you have it set to standby). Remove your SIM card. The two screws on the end simply undo – they’re initially held with threadlock, so may be tight – make sure you use the right screwdriver (mine is marked 0×50, I’ll see how that relates to standard Philips sizes and update but if you can’t figure out what the right size is, maybe stop here). Place the case with the screw holes facing away from you and slide the back away from the fixed port panel. Once there is a reasonable gap, the case simply lifts off. If it won’t slide, check you removed the SIM first.
Once open, you have access to the battery, the SATA 2.5″ hard disc (it appears to have sufficient height to take a 500GB drive), the memory (200 pin DDR2 SO-DIMM; same as iMac 2.16GHz and pre Santa-Rosa Macbooks amongst many, many others) and the two Mini PCI-E slots – which in this model are populated with a Sierra MC8780 Aircard for 3G Wireless (it also, in some variants, supports GPS) and a generic WiFi and Bluetooth card. The WiFi antenna is near the fan, the 3G antenna is near the battery.
Upgrading from the included 1GB memory to 2GB made no difference to the overall performance index, but saw Lightroom load considerably faster and the memory performance increase from 4.5 to 4.6.
The J-10 is based around a metal chassis, forming the centre of a sandwich with the LCD, chrome bezel and front panel on one side, and the boards and battery on the opposite site. With the exception of a few smaller components, the component quality is good – the antenna PCBs are a bit thin, and are stuck down (in the case of the WiFi antenna, glued to the battery). The battery is a 3000mAh unit and anyone claiming a greater capacity is mislead or lying, essentially – unless it’s a different unit altogether.