Thread: IMPORTANT! If you want HELP in case of a bricked Garmin device, please follow this

You're referring to this post [Only registered and activated users can see links. ] as Butter's tutorial, i'm sure. What he's saying is that for the senior models (255W & 265W) the original logo data is fine after 456T conversion. Some junior models, particularly regional EU issues, may have had features suppressed by modified data in region 16 - that's where the logo splash is stored therefore the logo data is best updated or there's a good chance of not functioning properly as a 465T. That's essential to be done with the (misnamed) 2x0W models sold in the Northern summer/Southern Winter of 2009. They were a Frankenstein device which had essentially what was a 2x5W HWID 0827 board in a 2x0W case. They acted like the original 2x0W devices without any traffic function and some others like Speed Limit display and maybe TTS too were lacking, i think. That was done by intentionally crippling 0827HWID basic functions via modified logo data to make them "seem" like a 2x0. If one of them was converted to 465T retaining the original logo data it was a mess. It needed to have either the senior 2x5W logo flashed to it first or the 465T logo flashed at the same time as the other data during the conversion. However, some of those later boards didn't take a 465T conversion well at all, even hybrid wasn't successful and then they would white screen brick if fully converted i seem to recall.

Sorry your nuvi is indeed dead as you said. With neither preboot or SD card reading operative it's irrecoverable by software means and a hardware solution is not viable. Keep it for parts, the screen is probably still working fine and some 2x5W screen types even work on early 13x0 nuvi models.