For those who have done the ISO firmware update

Jdub679 · 01-24-2014, 11:49 AM

Quote:

Originally Posted by Andrewe92

ok perfect!! except that link is n54 and myself/ marcus are running a n55 but thank you for clearing that up! sounds easy

N54tech is the name of the tuning website. I can't open it from work, but there is a specific sticky section on that website detailing N55 ISO. I recommend you read that.

Andrewe92 · 01-24-2014, 11:51 AM

Quote:

Originally Posted by Jdub679

Quote:

Originally Posted by Andrewe92

ok perfect!! except that link is n54 and myself/ marcus are running a n55 but thank you for clearing that up! sounds easy

N54tech is the name of the tuning website. I can't open it from work, but there is a specific sticky section on that website detailing N55 ISO. I recommend you read that.

Yup seems like 5.3 is newest I will be sure to cut the diode before hooking it up to car! Thanks guys

m4xm1l10n · 01-24-2014, 11:56 AM

Correct I copy the wrong link, sorry fellas .

SRT14PimPin07 · 01-24-2014, 12:49 PM

Hey guys....I have a question. I'm running ISO HEX 4. But now the newest version is 5.3. Should I upgrade to 5.3? I read stuff like people loosing their settings and people hitting high amounts of boost and then the JB4 switching them back to map 4 due to high boost levels. Anyone have any input on this or what I need to look out for if I do the upgrade?

Infamy · 01-24-2014, 12:59 PM

Quote:

Originally Posted by mashimarho

I'm still Pre-ISO. Still a bit "afraid" to do it. Lol

Me too bro. I see a lot of waste gate rattle after. My car runs awesome, if it's not broke don't fix it right.

Jeef · 01-24-2014, 06:25 PM

Quote:

Originally Posted by Markus8291

Quote:

Originally Posted by m4xm1l10n

You can do it either way .
Would look like this if you want to return from ISO ( but why would you ? )
Or you can cut both ends off.

So I can cut the Diode, connect the board via usb to my laptop and install the ISO Firmware BEFORE installing it in the car?

You need to cut the diode and install the jb4 so you can power it on by hitting the ignition button(don't hold brake) then hook up the laptop and update.

Markus8291 · 01-24-2014, 06:34 PM

Quote:

Originally Posted by Jeef

You need to cut the diode and install the jb4 so you can power it on by hitting the ignition button(don't hold brake) then hook up the laptop and update.

Gotcha. Thanks for the help!

skyofx · 01-24-2014, 08:58 PM

Confused...what does the ISO mod to jb4 stage 2 for n55 do exactly?

Weasel410 · 01-24-2014, 11:42 PM

Has anyone had issues with the water pump not turning off and draining the battery after the ISO mod?

Jdub679 · 01-25-2014, 03:45 PM

Quote:

Originally Posted by Weasel410

Has anyone had issues with the water pump not turning off and draining the battery after the ISO mod?

There is a fix for this. I believe it only happens if you also have an oil catch can.

Sidewinderpb · 01-27-2014, 02:08 PM

Just put on my big boy pants and did the update. It was super easy - with the exception of my laptop crapping out after I cut the diode. That was a bit of a scare, but I got it working haha.

J_Vang · 02-06-2014, 09:49 AM

Quote:

Originally Posted by m4xm1l10n

You can do it either way .
Would look like this if you want to return from ISO ( but why would you ? )
Or you can cut both ends off.

Out of curiosity, why did you cut off two diodes? That's what it looks like in your picture. This is the picture Terry provided

Sidewinderpb · 02-06-2014, 02:07 PM

Quote:

Originally Posted by Weasel410

Has anyone had issues with the water pump not turning off and draining the battery after the ISO mod?

I'm actually having a few issues after one week of ISO 5.3.

Water pump is failing - which is probably not to blamed on the JB4.

Temporary loss of power while driving. Once/Twice per day, I hit the throttle and get absolutely no feedback. I can floor it, and the car will go nowhere.
The JB4 might not be at fault for this one either.

Sometimes, the car just takes off like I hit the Nitrous. I can move the throttle down about 1mm, and the car shoots forward, as if I downshifted.

Markus8291 · 02-06-2014, 02:34 PM

Quote:

Originally Posted by J_Vang

Out of curiosity, why did you cut off two diodes? That's what it looks like in your picture. This is the picture Terry provided

that first picture is for an N54 board, where you have to cut both of them. N55 JB4 only needs the one diode cut

madmanhiker · 02-14-2014, 11:30 AM

Quote:

Originally Posted by Sidewinderpb

I'm actually having a few issues after one week of ISO 5.3.

Water pump is failing - which is probably not to blamed on the JB4.

Temporary loss of power while driving. Once/Twice per day, I hit the throttle and get absolutely no feedback. I can floor it, and the car will go nowhere.
The JB4 might not be at fault for this one either.

Sometimes, the car just takes off like I hit the Nitrous. I can move the throttle down about 1mm, and the car shoots forward, as if I downshifted.

any updates on your water pump issues? I'm holding off on 5.3 until more feedback.....

Markus8291 · 02-14-2014, 11:59 AM

Quote:

Originally Posted by madmanhiker

any updates on your water pump issues? I'm holding off on 5.3 until more feedback.....

I've been running ISO 5.3 from the day I installed the JB4 and have never had any waterpump staying on issues. No complaints at all about 5.3 actually. Hope that eases your mind a bit.

Jeef · 02-14-2014, 12:16 PM

Quote:

Originally Posted by madmanhiker

Quote:

Originally Posted by Sidewinderpb

I'm actually having a few issues after one week of ISO 5.3.

Water pump is failing - which is probably not to blamed on the JB4.

Temporary loss of power while driving. Once/Twice per day, I hit the throttle and get absolutely no feedback. I can floor it, and the car will go nowhere.
The JB4 might not be at fault for this one either.

Sometimes, the car just takes off like I hit the Nitrous. I can move the throttle down about 1mm, and the car shoots forward, as if I downshifted.

any updates on your water pump issues? I'm holding off on 5.3 until more feedback.....

Water pump is not from jb. It's just how these cars are. They go out around 60k miles. Just do the iso mod and enjoy.

Markus8291 · 02-14-2014, 12:25 PM

Quote:

Originally Posted by Jeef

Water pump is not from jb. It's just how these cars are. They go out around 60k miles. Just do the iso mod and enjoy.

He's talking about the water pump staying on after the car is shut off issue, which drains the battery. It's a side effect that can happen with ISO if an OCC is also installed. There is a work around for it though. I believe someone posted a video about it in this thread.

JETmn · 02-14-2014, 03:35 PM

Glad I saw this! Got my JB4 yesterday and my OCC came today. I will be sure to leave the stock line hooked up, but just hide it away.

Sidewinderpb · 02-16-2014, 10:48 AM

Sorry for the delay!

Update: water pump failed, but that was just the normal BMW thing. It was bound to happen at some point. Had it replaced under warranty.

Now the issue is the car dies at cold start. It just Boggs and then dies. After reading around, I think it's the stark plugs, injectors, or fuel pump. Really didn't expect everything to crap out on me two months after buying the car.

mustangivore · 08-11-2014, 09:42 PM

Now that it's been half a year, would you say that 5.3 is reliable? It appears that5.3 is still the latest firmware.

Jsoboti · 08-12-2014, 07:10 AM

Quote:

Originally Posted by RunFat

Now that it's been half a year, would you say that 5.3 is reliable? It appears that5.3 is still the latest firmware.

No complaints here, still loving it. Especially after adding FF wires and running E40

01-24-2014, 11:56 AM	#25
m4xm1l10n Private First Class 8 Rep 178 Posts Drives: 10 M-Sport 135i Join Date: Nov 2013 Location: GA iTrader: (1)	Correct I copy the wrong link, sorry fellas .
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01-24-2014, 12:49 PM	#26
SRT14PimPin07 Major 78 Rep 1,035 Posts Drives: X5 Join Date: Jun 2009 Location: Los Angeles iTrader: (4)	Hey guys....I have a question. I'm running ISO HEX 4. But now the newest version is 5.3. Should I upgrade to 5.3? I read stuff like people loosing their settings and people hitting high amounts of boost and then the JB4 switching them back to map 4 due to high boost levels. Anyone have any input on this or what I need to look out for if I do the upgrade? __________________ 2011 Alpine White E92 335i M-Sport N55 Engine
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01-24-2014, 08:58 PM	#30
skyofx New Member 4 Rep 14 Posts Drives: 2011 335xi Join Date: Jul 2013 Location: Newport News,VA iTrader: (0)	Confused...what does the ISO mod to jb4 stage 2 for n55 do exactly?
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01-24-2014, 11:42 PM	#31
Weasel410 Private First Class 5 Rep 121 Posts Drives: 2011 135i Join Date: Mar 2012 Location: SoCal iTrader: (2)	Has anyone had issues with the water pump not turning off and draining the battery after the ISO mod?
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01-27-2014, 02:08 PM	#33
Sidewinderpb Banned 329 Rep 1,739 Posts Drives: 2017 340i xDrive 6mt Join Date: Nov 2013 Location: CT iTrader: (7)	Just put on my big boy pants and did the update. It was super easy - with the exception of my laptop crapping out after I cut the diode. That was a bit of a scare, but I got it working haha.
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02-14-2014, 03:35 PM	#41
JETmn Lieutenant Colonel 245 Rep 1,595 Posts Drives: 2011 335i xDrive Msport Join Date: Apr 2013 Location: Orlando iTrader: (0) Garage List 2011 335Xi [0.00]	Glad I saw this! Got my JB4 yesterday and my OCC came today. I will be sure to leave the stock line hooked up, but just hide it away.
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02-16-2014, 10:48 AM	#42
Sidewinderpb Banned 329 Rep 1,739 Posts Drives: 2017 340i xDrive 6mt Join Date: Nov 2013 Location: CT iTrader: (7)	Sorry for the delay! Update: water pump failed, but that was just the normal BMW thing. It was bound to happen at some point. Had it replaced under warranty. Now the issue is the car dies at cold start. It just Boggs and then dies. After reading around, I think it's the stark plugs, injectors, or fuel pump. Really didn't expect everything to crap out on me two months after buying the car.
	Appreciate 0 Quote

08-11-2014, 09:42 PM	#43
mustangivore Second Lieutenant 33 Rep 236 Posts Drives: 2011 335i E90 Join Date: Nov 2013 Location: Asphalt iTrader: (0)	Now that it's been half a year, would you say that 5.3 is reliable? It appears that5.3 is still the latest firmware. __________________ MHD Stage 2+ FBO
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