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BMW Coding and Programming
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  #1  
Old 12-03-2014, 06:51 AM
jackylooo jackylooo is offline
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Regarding to ECM S/W flash with big external Power supply

I know this had been discussed and high lighted before.
Seems a lot of people emphasized the importance of attached 70 amps power supply before flash ECU .
It is not so easy to find such thing here, do I have other method to overcome this? My car has 90amp AGM battery, how long this one can last for flash work if it is fully charged?
Any suggestion or advise are welcomed

Thanks!
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  #2  
Old 12-03-2014, 07:39 AM
bestb bestb is offline
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I flashed my car by connecting battery to another car
hu-cic took 1:20hrs, other modules you can flash in 20 mins
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  #3  
Old 12-03-2014, 10:47 AM
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ap90500 ap90500 is offline
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F-series cic takes 30-40 minutes, full loaded F10 with almost every ecu updated takes a bit over one hour. Extra battery won't help because it can provide 12,7v at maximum, and you need more than 13v to be on safe side.
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  #4  
Old 12-03-2014, 11:30 AM
bestb bestb is offline
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What I did - just connect it to another running car not just the battery
I did it today so I know it is safe.
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  #5  
Old 12-03-2014, 11:35 AM
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ap90500 ap90500 is offline
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Yes, it is okay if you connect to other car that has engine running. OP asked about using 90 Ah battery, which is completely different thing than using power source (or running car) capable to output 70 amps at certain voltage level.
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  #6  
Old 12-03-2014, 11:37 AM
bestb bestb is offline
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I know but he also mentioned about "Any suggestion or advise are welcomed" so thats why I suggested him what I did.
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  #7  
Old 12-03-2014, 11:39 AM
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ap90500 ap90500 is offline
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Yes, your method is 100% ok.
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  #8  
Old 12-03-2014, 02:20 PM
jackylooo jackylooo is offline
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Regarding to ECM S/W flash with big external Power supply

Thanks for all the advise, I think jump connect to another car with running motor is clever idea and workable solution for me, I will try that .

Last edited by jackylooo; 12-03-2014 at 03:09 PM.
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  #9  
Old 12-03-2014, 02:38 PM
jackylooo jackylooo is offline
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Has Anybody success with 5 amps supply? I just don't understand how come the flash would drag so much power..
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  #10  
Old 12-03-2014, 11:23 PM
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zkiifreak zkiifreak is offline
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Can you post an idiot's guide to how to connect the two cars? I'm fairly good with computers and all things electric (you cannot go wrong if somethings's supposed to be pulgged into an electrical outlet ), but cars - not so much... I know how to drive it, but I want to make sure I get connecting two cars right.
Can anyone describe the process of connecting two cars? Thanks
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  #11  
Old 12-04-2014, 02:35 AM
bestb bestb is offline
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Sorry I did that in Paint
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  #12  
Old 12-04-2014, 03:42 AM
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zkiifreak zkiifreak is offline
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Quote:
Originally Posted by bestb View Post
Sorry I did that in Paint
Your Paint skillz are MAD! Better than mine though
So I assume, I connect the wires as depicted and then just normally turn the ignition on (don't start the car) on my F11 and then start the second car? <-- you can tell, I'm a noob here!
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  #13  
Old 12-04-2014, 03:48 AM
bestb bestb is offline
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I know Im Cisco Engineer not graphic designer... but Im proud haha
I will suggest to start engine first (2nd car) then connect leads and in your just turn ignition ON
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  #14  
Old 12-04-2014, 04:05 AM
jackylooo jackylooo is offline
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Regarding to ECM S/W flash with big external Power supply

Is there anyone who had success experience of ECU Upgrade with just 5 amps external power hooked? Thanks!

Last edited by jackylooo; 12-04-2014 at 06:10 AM.
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  #15  
Old 12-05-2014, 03:20 AM
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shawnsheridan shawnsheridan is offline
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Quote:
Originally Posted by jackylooo View Post
Is there anyone who had success experience of ECU Upgrade with just 5 amps external power hooked? Thanks!
Man, 5 Amps? You are seriously risking bricking ECU's. Get a real commercial grade charger or jump car to another, but do not bother flashing with a 5 Amp Trickle Charger.
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  #16  
Old 12-05-2014, 04:34 AM
jackylooo jackylooo is offline
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Hi Shawn,

I think you are right about the big power external supply for ECU flash, I searched the forum and never see anyone succeeded the ECU Flash with trickle charger.
I just measured my car's battery, it only had 12.8 volts which is way below minima required power of 13 volts.
Will try to seeking a commercial grade supply tomorrow, it will not be an easy task here, the biggest I saw so far is just 20 amps ...
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  #17  
Old 12-05-2014, 07:19 AM
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shawnsheridan shawnsheridan is offline
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Good choice and good luck.
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  #18  
Old 12-05-2014, 05:14 PM
footballrunner8 footballrunner8 is offline
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Just flashed my car to 54.1 from 52 using another car. Flashed all the modules it worked perfectly only took 45 minutes.
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  #19  
Old 12-05-2014, 06:35 PM
jackylooo jackylooo is offline
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Regarding to ECM S/W flash with big external Power supply

Quote:
Originally Posted by footballrunner8 View Post
Just flashed my car to 54.1 from 52 using another car. Flashed all the modules it worked perfectly only took 45 minutes.

Congratulations ! Glad to hear some more success story , this did encourage me more.
Few more questions I'd like to check with your success story.
Did you also run the flash with E-sys + E-net?
Did you run the flash all at once or in separate order?
Did you connect via VIN or Gateway URL?How many ECU need update from 52 to 54.1?
Have you uncheck update MSM and VCM in E-sys option before flash?

My I-Step Ship is F010-13-07-506 , how to map it with psdzdata level?

Last edited by jackylooo; 12-05-2014 at 10:05 PM.
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  #20  
Old 12-05-2014, 11:12 PM
footballrunner8 footballrunner8 is offline
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I might have spoken too soon. I can't get my airbag to unlock and It still shows the same I-step i had when i check it on Esys. I did disable updating VCM and MSM and I flashed via Gateway. Ill give it another try tomorrow.
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  #21  
Old 12-06-2014, 12:11 AM
jackylooo jackylooo is offline
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Regarding to ECM S/W flash with big external Power supply

For the airbag lock issue after flash ACSM ECU, You may try following as posted in another thread by Shawn,

Run E-Sys Transmitter:
1) Click "External Applications" in the left menu.
2) Click "External Application"
3) Double-click "Transmitter"
4) Double-click "ACSM verriegelung_schreiben"

Did you run the whole upgrade at once? Or with special order?

Last edited by jackylooo; 12-06-2014 at 12:13 AM.
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  #22  
Old 12-06-2014, 12:14 AM
jackylooo jackylooo is offline
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Most important question:
Is there any noticeable improvement after upgrade to 54.1??
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  #23  
Old 12-06-2014, 12:14 AM
footballrunner8 footballrunner8 is offline
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I ran it all at once. I did try the above but it didnt work. Im going to try it again tomorrow and see if anything changes.
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  #24  
Old 12-06-2014, 12:44 AM
jackylooo jackylooo is offline
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I suspect the main reason that your Current I Step remain with old release after update is because you unchecked the Update MSM and update VCM option, I also don't know the reason behind it, Shawn, would you please share what's the main reason to uncheck these 2 option when do ECU upgrade?what is the benefit from that?Thanks!
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  #25  
Old 12-06-2014, 01:53 AM
botho botho is online now
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Quote:
Originally Posted by jackylooo View Post
For the airbag lock issue after flash ACSM ECU, You may try following as posted in another thread by Shawn,

Run E-Sys Transmitter:
1) Click "External Applications" in the left menu.
2) Click "External Application"
3) Double-click "Transmitter"
4) Double-click "ACSM verriegelung_schreiben"

Did you run the whole upgrade at once? Or with special order?
I had same problem and Esys did not solve this issue but Rheingold did
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