Thread: Add JCV/Lane assist to nuvi 205w - Any new guides?

You've quoted '27301000xxx.rgn' from Step 3 in [Only registered and activated users can see links. ] In the post #77 of the firmware thread linked in my previous post regarding using that tut as a guide, it says this:

Originally Posted by Neil

If it's the non-MTK chip with HWID 0827 it can be flashed to 465. Don't attempt if it's MTK HWID 1091, it'll brick. If you have 0827, use the 265W boot.bin combined with 465 fw_all.bin and HWID overrides set to 0827 in RGN_Tool for safety. You can follow 'Method 1' described in the [Only registered and activated users can see links. ] and simply substitute the firmwares as necessary. Latest v4.20 465 firmware is here: [Only registered and activated users can see links. ]. Be sure to use latest versions of both firmwares to obtain the boot and fw_all components. You can leave the 265W logo as-is or flash 465 logo to region 16, available here: [Only registered and activated users can see links. ]. Make sure you back up region 41 [NV Backup] before doing anything. Basic files such as Voice, Text etc except Help are the same on both units.

So to be clear:
The nuvi 2460>dezl 560 conversion thread was linked as a GUIDE only. 2730 is HWID of nuvi 2460, don't name your rgn file anything other than 082701000420.rgn and use overrides to HWID 0827 ONLY and SW Version 420 in RGN_Tool. Your question suggests that you maybe haven't quite got your head around the process yet. Please don't do this unless you do fully understand the process and its possible risks [risk is actually extremely low if you retain hwid and use 2x5W boot bin and don't do anything silly]. Be certain that your 205W is in fact HWID 0827 [hold battery symbol for ~6 seconds to enter hidden menu, press next > Start Test > More and at the top of that page look the the entry next to Boot BLK. If it's B1091-00 don't attempt the conversion, only do it if your 205W has B0827-00. If it is 0827, procced as follows:

1. Open nuvi465T_GCDFile__420.gcd in RGN_Tool, save the fw_all.bin [2nd section] somewhere convenient.
2. Open nuvi2x5W_GCDFile__760.gcd in RGN_Tool, press 'Load' on the 2nd section and browse to where you've save fw_all.bin from 465 firmware to load it. Do the HWID and SW Version overrides as detailed above.
3. Check the 3rd section to enable it and press 'Load', browse to where you've saved the 465 logo.bin and select it [get the 465_logo.bin from here: [Only registered and activated users can see links. ] and extract it, rename it 16.bin if you want but it doesn't matter]. In explanation, your 205W as OEM has a modded logo which disables TTS. To enable TTS you need to replace it. This is what you should now have in RGN_Tool:

[Only registered and activated users can see links. ]

4. Press the 'RGN' button on the top left of the GUI and save as 082701000420.rgn ONLY.
5. Put [Only registered and activated users can see links. ] in the same folder as the rgn file and drag it onto Updater.exe which will open as a GUI, keep it visible on your Desktop with the radio button next to 'USB Device' selected.
6. Put your 205W into preboot by holding the screen top LH corner and immediately connect the miniUSB to it [have the lead ready plugged into a rear port of your PC], watch the window next to 'USB Device' and immediately you see the unit's details appear press 'OK' or just hit Enter key, hold screen at least until you see 'Loader' appear on the screen.

[Only registered and activated users can see links. ]

Important:
1. Back up your unit's file system and [Only registered and activated users can see links. ] and [Only registered and activated users can see links. ] before you do anything. After flashing, hard reset it again.
2. If you're uncomfortable making the firmware yourself, post again and i'll upload a ready-made kit for you. Better to do it yourself for the experience and sense of accomplishment though.