Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post - OFT Openflash V4 tunes released for 2017+ with Launch/FFS

nofferman · 05-05-2018, 01:27 AM

I'm trying to go from v2.061 tunes to v4 tunes on my '13 manual BRZ (CAL ID ZA1JA01C), but I've been having a beast of a time getting the tablet to load the new maps.

Every time I try to upload a file, I'm getting the DEV121.dll message about the checksum being wrong. I followed the support guide for that error, but it's the same every time I try to upload a ROM. Tried older v2 ROMs and new v4 ROMs and four different PCs, with various versions of Win7/Win10 and I keep seeing it. I've been in contact with Anthony from OpenFlash, but we've not found a fix yet.

I have an older v1 tablet that hadn't been updated in a couple years; could there be some data problem with the tablet that's preventing me from loading new maps?

I was able to load my stock ROM tonight, would erasing the tablet and starting from scratch be worth trying?

Thanks all!

05-05-2018, 01:27 AM	#356
nofferman Member Join Date: Apr 2013 Drives: BRZ Location: Wisconsin Posts: 17 Thanks: 28 Thanked 7 Times in 5 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I'm trying to go from v2.061 tunes to v4 tunes on my '13 manual BRZ (CAL ID ZA1JA01C), but I've been having a beast of a time getting the tablet to load the new maps. Every time I try to upload a file, I'm getting the DEV121.dll message about the checksum being wrong. I followed the support guide for that error, but it's the same every time I try to upload a ROM. Tried older v2 ROMs and new v4 ROMs and four different PCs, with various versions of Win7/Win10 and I keep seeing it. I've been in contact with Anthony from OpenFlash, but we've not found a fix yet. I have an older v1 tablet that hadn't been updated in a couple years; could there be some data problem with the tablet that's preventing me from loading new maps? I was able to load my stock ROM tonight, would erasing the tablet and starting from scratch be worth trying? Thanks all!