Nikkei Electronics Teardown Squad started to break down the "Nintendo 3DS LL" portable game console. First, we began to work on the lower case of the console, which was expected to contain a main board.
On the back side of the lower case, we found two screws. After unscrewing them, we removed the back cover of the lower case. There was a battery inside. The capacity of the lithium-ion (Li-ion) rechargeable battery is 1,750mAh, which is higher than that of the Nintendo 3DS' battery (1,300mAh).
There were four screws under the back cover. It seemed that the lower case could be opened after removing them. So, we took out the four screws with a cross head screwdriver.
Then, we tried to open the lower case, but it did not open. It looked like something was in the way near a hinge. There was a small rubber cover on a part of the back cover near the hinge. After picking out the rubber cover with a flat-blade screwdriver, we found a screw.
Actually, there was another rubber cover on the lower case's back cover, and there was a screw under each of the two rubber covers. The case was easily opened after taking out the two screws under the rubber covers. So, in total, six screws were used to fix the lower case of the 3DS LL.
Opening the lower case, we found a main board. The layout of the board was almost the same as that of the 3DS's main board.
There was a large slot for game software on the upper center of the main board, and a wireless LAN module was located near the slot. The printed circuit board (PCB) of the module was printed with "HON HAI." Also, there was Samsung Electronics Co Ltd's memory printed with "KLM2G1DEHE" near the wireless LAN module.
Next, we started to take out the main board from the lower case.