Changes

{| class="wikitable"

{| class="wikitable"

! Model !! Device Prefix (Retail) !! Device Prefix (Dev)

! Model !! Device Prefix (Retail) !! Device Prefix (Dev/Test)

|-

|-

| ''DSi'' || T || V

| ''DSi'' || T || V

|-

|-

| ''DSi XL/LL'' || W ||

| ''DSi XL/LL'' || W || ''unknown''

|-

|-

| ''Wii U'' || F ||

| ''Wii U'' || F || ''unknown''

|-

|-

| 3DS || C || E

| 3DS || C || E

|}

|}

Development units with the same prefix as retail can be distinguished by development units having 00 as the first two digits of the serial number portion.  It's currently not known definitively, but 01 as the first two digits seems to mean a retail unit given out to the press - this was seen for New 2DS XL units reviewed by the press.

Test ("Panda") units with the same prefix as retail can be distinguished by test units having 00 or 01 as the first two digits of the serial number portion.  00 was used with the New 3DS and New 3DS XL for test units; 01 was used with the New 2DS XL test unit.  Preview versions of the N2DS XL given out to the press had 01; these appear to have been test units with the development titles deleted.

 

Old 3DS development systems (Partner-CTR, IS-CTR-BOX, IS-SPR-BOX) use the "E" and "R" prefixes like test systems, but have 90 (Partner-CTR) or 91 (IS-CTR-BOX, IS-SPR-BOX) as their first two digits.  It is currently unknown what is the serial number format of New 3DS development systems (IS-SNAKE-BOX, IS-CLOSER-BOX).

{| class="wikitable"

{| class="wikitable"

| Europe || Europe || EF, EH, EM

| Europe || Europe || EF, EH, EM

|-

|-

| Australia || Europe || AH

| Australia || Europe || AH, AG

|-

|-

| South Korea || Korea || KF, KH, KM

| South Korea || Korea || KF, KH, KM