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Femto Full Bench Unlock

razorlab

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That’s great to know it works well…it’s about $100-$150 cheaper than MHD tool if I recall, so solid option!

So in summary for everyone else…

SITUATION: You have a pre-2020 “factory unlocked DME” or post-2020 DME that was already sent off to be fully unlocked. You had a dealer update that relocked it (locked out the OBD flashing)….

1) If you are pre-2020 DME or post-2020 DME fully unlocked by FEMTO - you can take it to any shop with a bench unlock tool to regain access. Or you can buy your own personal unlock tool (ie MHD Unlock Tool, Mission Unlock Tool, etc). The Femto Full Unlock and the pre-2020 DME’s act essentially the same for bench unlocking.

2) If you are post-2020 DME and had AUTOTUNER full unlock, you’d need an Autotuner shop to regain access via bench unlock. Per Autotuner directly, only their tool will work to bench unlock it should dealer relock after service. There are currently 3 authorized shops in US that can do it so you might have to mail it in if a shop is not close. Is it possible Autotuner is “just saying that”, yes - but nobody has posted that they tried using the other bench unlock tools on an autotuner unlocked DME. I’m not gonna be the guinea pig and risk damaging a DME….

So if you are deciding between Autotuner and Femto, see above. Do as you wish with that info….
I wouldn't be so matter of fact about #2 yet. As I stated before, AT also states that they don't guarantee that other tools would work to flash their unlocked DME's and we all know they work just fine.

Screenshot 2026-02-04 at 6.31.14 PM.webp
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RacerJohnny

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I wouldn't be so matter of fact about #2 yet. As I stated before, AT also states that they don't guarantee that other tools would work to flash their unlocked DME's and we all know they work just fine.

Screenshot 2026-02-04 at 6.31.14 PM.webp
100% agreed, I was just trying to condense what we officially know. I also suspect the other tools will work just fine BUT we don’t know how the unlock methods may differ behind the scenes. Until somebody tries it, we can’t confirm so as of today, I have to take Autotuner at their word it doesn’t work and not try it. As for the flasher method, they soften the language to say can’t guarantee and I think less risk of messing anything up so I felt better about that.
 
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