Bootmod3 flash failed during write

[soler18]

Trying to flash car for new burbles, flash failed during write is the error that came up and now my car won't start ?

[James0518]

Originally Posted by soler18

Trying to flash car for new burbles, flash failed during write is the error that came up and now my car won't start ?

Did the same thing before. You drained your battery...put it on a trickle charger and try again after a few minutes.

[psuwcc112]

I had the same exact issue few weeks back. Make sure you have good WIFI connection and hook up the car to a power source. If 2nd reflash still does not work, you may need to do a DME power reset on the app then reflash.

http://f80.bimmerpost.com/forums/sho...postcount=1358

[EALm4]

This cant be a common occurrence can it? I've flashed my car just sitting in a parking lot a bunch of times.

Is the wifi connection the problem here and the car is just sitting there for way too long?

[soler18]

Fixed it turns out it was the battery and dme stuck in a mode just had to flash it with better wifi and connected to a trickle charger thanks guys almost had a heart attack

[psuwcc112]

Originally Posted by soler18

Fixed it turns out it was the battery and dme stuck in a mode just had to flash it with better wifi and connected to a trickle charger thanks guys almost had a heart attack

Good to hear, did you have to do a DME power reset?

[psuwcc112]

Originally Posted by EALm4

This cant be a common occurrence can it? I've flashed my car just sitting in a parking lot a bunch of times.

Is the wifi connection the problem here and the car is just sitting there for way too long?

I am not sure how common it happened to people. I have probably flashed about dozen time (successfully) with the same wifi location and without a charger prior to the incident. But it seems does happen, i will probably flash with a charger from now on..

Perhaps PTF can chime in about this.

[Drew@Sonic MS]

Sounds like transport/diagnostic mode - try unplugging battery for 5-10 minutes or use ISTA to turn it off.

[chewbakam4]

I’ve flashed at least 30-40 times with OTS and custom tunes. Had it fail once when my phone died mid flash LOL but then flashed again fine.

[Jadar]

Originally Posted by EALm4

This cant be a common occurrence can it? I've flashed my car just sitting in a parking lot a bunch of times.

Is the wifi connection the problem here and the car is just sitting there for way too long?

It can be an issue at times. Battery must never be below 11.8v on accessory mode, dme can fall asleep make sure to hook up your driver seatbelt. Your WiFi or internet signal is also crucial. There are some parameters that need to be met.

I tired to once flash on he side of the road and low and behold my car spent the night there. Dzenan helped me sort it out (amazing customer service) by kicking everyone off the servers and just doing his thing we got it flashed and started. Now I never flash anywhere besides my driveway or garage lol.

[whoop_ass]

over 60 flashes on my car happened about 3 times.
just flash again all will be restored no problem.

[proTUNING Freaks]

Originally Posted by soler18

Fixed it turns out it was the battery and dme stuck in a mode just had to flash it with better wifi and connected to a trickle charger thanks guys almost had a heart attack

Sounds good

Failed flash can happen for any number of reasons and happens regardless of type of connection, wired or wireless. In fact very little to none has to do with the actual connection itself as issues there are detected way before flashing actually kicks off.

At times people with piggyback devices running on OBD can interfere with both diagnostics and flashing, really anything running over OBD. Examples includes aftermarket valve controllers, tunes such as JB4, etc. Packets of data write acknowledgements can/do get lost if other devices are connected/active so make sure any piggyback devices aren't hooked up or active.

Among other things BM3's flash protocol checks battery voltage level as well as total estimated flash time comparing it to estimated discharge time of the battery and only allows the flash to start if all the checks have been checked off (e.g. motor off, ignition on, flash mode on, etc). There are also redundancies in place to recover and retransmit data in case of bad connections, dropped connections (disconnected and/or bad cables), battery on the phone/laptop dying or going to sleep. At times people open the door while flashing (e.g. too hot in the car ) and the vehicle will turn ignition off failing the flash.

We've placed all the warnings to let users know pre-flash but most of us are 'real men' and we all know real men don't read instructions even when they have to

No matter what though, at the end of the day when flashing over OBD you can't end up bricking these DMEs and there's always a way to recover, without pulling the DME out of the car. We've done everything you can imagine during testing in terms of failed flashes to ensure there's always a way to restore the DME back to normal through OBD, as long as your battery has enough charge still.

Flashing checklist:

1) Engine off, driver's side seatbelt on, close doors and don't open while flashing

2) Hit the start button 3x to cycle ignition (on/off) and leave ignition on. Should show gas gauge level when ignition is on

3) Connect with bm3 and flash

4) Do yourself a favor and try to flash in a safe area just in case you end up having an odd issue such as battery charge related or phone/laptop dying etc

Some fun stats, since Sept. 7th '17 when we started archiving flash history BM3 has seen a total of 2510 flash requests of which 128 failed during write for one reason or another. 119 of those successfully recovered by simply repeating the flash and the remaining 9 ended up in the support queue on our support website where we stepped in to help such as with one of the user's in this thread to advise them on getting a battery charger and repeating the process.

[aboulfad]

Originally Posted by Jadar

It can be an issue at times. Battery must never be below 11.8v on accessory mode...
...

FYI, and for others, F8x LifePO4 battery characteristics is way different than a regular 12V battery. At 11.8V the LifePO4 battery probably is close to dead 😉 check BMW doc and the OCV comparison chart in F8x Lithium battery.

[Jadar]

Originally Posted by aboulfad

FYI, and for others, F8x LifePO4 battery characteristics is way different than a regular 12V battery. At 11.8V the LifePO4 battery probably is close to dead 😉 check BMW doc and the OCV comparison chart in F8x Lithium battery.

Ya I didn't take that into consideration I have an F30 I'm sure mine is different. The f30's usually read around 11-11.8v when in accessory mode engine not on, what do the F80/82 read out in V?

But ya parameters have to stay consistent during a flash write or to will and can fail.

[FSociety]

Originally Posted by proTUNING Freaks

Sounds good

Failed flash can happen for any number of reasons and happens regardless of type of connection, wired or wireless. In fact very little to none has to do with the actual connection itself as issues there are detected way before flashing actually kicks off.

At times people with piggyback devices running on OBD can interfere with both diagnostics and flashing, really anything running over OBD. Examples includes aftermarket valve controllers, tunes such as JB4, etc. Packets of data write acknowledgements can/do get lost if other devices are connected/active so make sure any piggyback devices aren't hooked up or active.

Among other things BM3's flash protocol checks battery voltage level as well as total estimated flash time comparing it to estimated discharge time of the battery and only allows the flash to start if all the checks have been checked off (e.g. motor off, ignition on, flash mode on, etc). There are also redundancies in place to recover and retransmit data in case of bad connections, dropped connections (disconnected and/or bad cables), battery on the phone/laptop dying or going to sleep. At times people open the door while flashing (e.g. too hot in the car ) and the vehicle will turn ignition off failing the flash.

We've placed all the warnings to let users know pre-flash but most of us are 'real men' and we all know real men don't read instructions even when they have to

No matter what though, at the end of the day when flashing over OBD you can't end up bricking these DMEs and there's always a way to recover, without pulling the DME out of the car. We've done everything you can imagine during testing in terms of failed flashes to ensure there's always a way to restore the DME back to normal through OBD, as long as your battery has enough charge still.

Flashing checklist:

1) Engine off, driver's side seatbelt on, close doors and don't open while flashing

2) Hit the start button 3x to cycle ignition (on/off) and leave ignition on. Should show gas gauge level when ignition is on

3) Connect with bm3 and flash

4) Do yourself a favor and try to flash in a safe area just in case you end up having an odd issue such as battery charge related or phone/laptop dying etc

Some fun stats, since Sept. 7th '17 when we started archiving flash history BM3 has seen a total of 2510 flash requests of which 128 failed during write for one reason or another. 119 of those successfully recovered by simply repeating the flash and the remaining 9 ended up in the support queue on our support website where we stepped in to help such as with one of the user's in this thread to advise them on getting a battery charger and repeating the process.

[whoop_ass]

Great stats there Dzenno..

[Buschy]

does this work
https://www.fcpeuro.com/products/bmw...SABEgKz2fD_BwE

[chewbakam4]

That’s just a trickle charger for winterizing the car. It might be fine though if battery is already good but if its toast then you’re SOL and need a big boy charger.

[SeanWRT]

Originally Posted by proTUNING Freaks

Some fun stats, since Sept. 7th '17 when we started archiving flash history BM3 has seen a total of 2510 flash requests of which 128 failed during write for one reason or another. 119 of those successfully recovered by simply repeating the flash and the remaining 9 ended up in the support queue on our support website where we stepped in to help such as with one of the user's in this thread to advise them on getting a battery charger and repeating the process.

Am I the all time leader in failed flash attempt counts?

[FSociety]

Originally Posted by SeanWRT

Am I the all time leader in failed flash attempt counts?

It might be harkes lol

[harkes]

Originally Posted by SeanWRT

Am I the all time leader in failed flash attempt counts?

I'd like to challenge you for that spot haha! I would estimate my first try succes rate to be 20%. More than often I can get +1 hour to flash my car. In the BM3 infancy Dzenan opened a server in Tokyo ONLY to solve my connection problem from China.

Dzenan

Here a picture of my car getting towed right in front of the company entrance. Not embarrassing at all []

[SeanWRT]

Originally Posted by harkes

I'd like to challenge you for that spot haha! I would estimate my first try succes rate to be 20%. More than often I spend +1 hour to flash my car. In the BM3 infancy Dzenan opened a server in Tokyo ONLY to solve my connection problem from China.

Dzenan

Well, China based players you and I should dominate in this area.

You maybe lead in "career total", but I had my highlights where 3 days in a row, everyday it takes 2~3 hours and 6-7 failed attempts to flash through. Oh...and we spoke over phone on that first day So yeah, without you I can't make it. Thank you for being part of record making team!