I bought 1370T from Taiwan, firmware V2.90, and install mainland map 2010.30 on 4G SD, with SW.UNL & GMAPSUPP.UNL created with Jetmouse tools V1.5, the map works fine, with QSI function.

Recently, after I upgrade firmware to V3.1, even the map information showing in system normally with check mark (both mainland 2010.30 & Taiwan 2010.30), but the QSI icon (function) missing, and when I try to search mainland address, "no information" pop up.

I also made a down grade back to V2.90, mainland map still malfunction. Strange is even I remove SW.UNL & GMAPSUPP.UNL for both mainland map & Taiwan map, in the system all map still showing unlocked with check mark after I cycle the power.

Anyone have hints on how to fix that?

Thanks!

zhijunk wrote:Anyone have hints on how to fix that?

Look for how to reset the device to fabric defaults. Google for diagnostic menus, hidden menus or similar. Hopefully that'll care of any cruft left behind.

Before Garmin can use the file name" Gmapsupp.img" at internal memory and SD card at same time.
but after upgraded then can't use them at same time.
I tested in NUVI 265W
when I put 2 files in internal memory and SD card with the same file name "Gmapsupp.img"
then I can't serach address in Taiwan

so I think you should cancel one file in internal memory.
euther Gmapprom.img or Gmapprom1.img(this one is Taiwan address)
may be try rename "gmapsupp.img"(this is Taiwan city Navigator)

Another file name Gmapprom.img that was Taiwan City navi before. you can change to another country map.