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BMW Icom A2 repair
13-03-2023, 22:01 PM,
Post: #181
RE: BMW Icom A2 repair
Someone very poorly rewrote my advice about the NE555 in their own way. I don’t understand why it is advised to connect it to 5v and why he must constantly hammer the mega with his signal.


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13-03-2023, 22:17 PM,
Post: #182
RE: BMW Icom A2 repair
So what is your suggestion?
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14-03-2023, 11:33 AM,
Post: #183
RE: BMW Icom A2 repair
In the photo, the original fan is connected and the signal is 50Hz. From where they invented 400Hz, I know, but you still need to think with your head and not copy what someone wrote.

One wise guy flooded the entire Internet with advice that was not correctly copied from my text, and most of the same illiterate specialists began to think that any damage can be fixed by replacing flashes
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14-03-2023, 12:32 PM,
Post: #184
RE: BMW Icom A2 repair
You can use ccc fan, it works, also sunon MC30061V1-0000-G99, both tested by me, or create a signal like ferrum

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25-03-2023, 19:31 PM,
Post: #185
RE: BMW Icom A2 repair
Hello, I had problem with ICOM A2 clone too, system led always blinking green, if i try to usb restore, all 4 leds starts to flash red, than changes to green one by one, after couple minutes same system led blinking green again. Itool radar doesnt find icom.
Update: I have 3 different restore bin files, 17kb, 21kb and 41kb, using 41kb file icom acts different, all 4 leds always blinking red while restoring, after prodedure, same system led blinking green+lan led stays green after i connent it via lan to laptop, with 17 and 21kb files, no LAN led.
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06-04-2023, 06:21 AM,
Post: #186
RE: BMW Icom A2 repair
I don't know what restore file you're using, but my restore file is 18MB. In all icom versions never seen a restore file with KB dimension.

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16-04-2023, 15:10 PM,
Post: #187
RE: BMW Icom A2 repair
(10-03-2023, 22:35 PM)ferrum Wrote:  RAM Ok
R119 Ok
On dividers, resistance is not measured in-circuit.
Until you remove the error on the fan, the firmware will not be updated.

Hello again Ferrum, I removed the FAN ERROR with NE555 and the led for SYSTEM stays green now but I still have the same issue without making possible to Update Firmware. BootImage successfully gets updated but ApplicationImage it just starts and then Icom just restarts in normal state.
Help would be really appreciated.
Thank you!
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16-04-2023, 17:14 PM,
Post: #188
RE: BMW Icom A2 repair
UPDATE: Now System Image is updated to 01.31.00 but Application Image its still on previous Version. Tried also just to flash only Application Image but didnt work.

Now it connects to ISTA without showing FIRMWARE but is it safe to work with different IMAGE versions installed on ICOM.
Thank you!

   
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17-04-2023, 12:03 PM,
Post: #189
RE: BMW Icom A2 repair
You need to try to make a recovery with a flash drive and then update the firmware. If this does not help, then there may be a problem that needs to be fixed.
Reputation: +2 - Yah [+1] , Jalami [+1]
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17-04-2023, 20:30 PM,
Post: #190
RE: BMW Icom A2 repair
Hello again, now I tried to recover with a flash drive and follow instructions to restore to its factory firmware but it just flashes all lights with red for about 5 seconds and then it starts normally, tried many times.
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