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BMW Icom A2 repair
09-05-2022, 07:05 AM,
Post: #121
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RE: BMW Icom A2 repair
(07-05-2022, 22:18 PM)ferrum Wrote: check: Hello, Mr. ferrum, I have checked all the surrounding facilities .5V power supply also exists! and replaced 2025, but it still does not work. Now the symptom is that the system light flashes green, and the network light does not respond when the network cable is inserted! Is this a symptom when the CPU cannot read 24C02? |
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09-05-2022, 10:25 AM,
Post: #122
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RE: BMW Icom A2 repair
24c02 is needed at an earlier stage and most likely it is error the initialization of the PCI component.
Perhaps 1562 is not working or there is no connection 1562 with the processor. |
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Reputation: +1 - BMWF750GS [+1] | |||
10-05-2022, 02:34 AM,
Post: #123
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RE: BMW Icom A2 repair
(09-05-2022, 10:25 AM)ferrum Wrote: 24c02 is needed at an earlier stage and most likely it is error the initialization of the PCI component. I removed 24C02, icOM can only flash all LED once red, it means your analysis is correct, the system flashes green, it is an initialization error! I feel clueless right now!! |
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10-05-2022, 20:08 PM,
Post: #124
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RE: BMW Icom A2 repair
Everything points to the fact that 1562 is not working. The reason may be both a breakdown in 1562 and the lack of connections to the processor.
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Reputation: +1 - BMWF750GS [+1] | |||
17-05-2022, 16:12 PM,
Post: #125
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RE: BMW Icom A2 repair
(29-04-2022, 21:28 PM) ferrum Wrote: KIMZ Today I programmed a new 29gl064, also soldered a new nand samung and then the same, I was able to run the ICOM through icom_restore to the old v130 version (others did not work - 3 red LEDs and one green LED loop) after that I updated via WEB to v133, 137 and to v140 . I can't go higher now, in any case the boot image goes without a problem, then the application image when I confirm checksum after 15 seconds icom keeps restarting while the browser keeps refreshing the page. After next reboot i have still same firmware. Code: 2022-05-17T17:54:06 info 116 Init firmwareupdate 0 /tmp/ICOM-BootImage-01-29-00.bin |
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21-05-2022, 19:15 PM,
Post: #126
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RE: BMW Icom A2 repair
i bricked my icom a2 today, i changed the serial in the eprom 24c02 and soldered it back in correctly and measured for correct soldering. I then put the ICOM_Restore.bin on a USB stick and plugged it into the icom. after powering up the icom, i tried to hold down the reset button but it didn't show any function, after all this the icom no longer boots correctly. all leds light up red and shortly after the current is supplied, the LAN and the COMM led flash quickly. I only saw afterwards that the reset switch is probably not connected at all, where does it have to be soldered? I have the icom a2 clone with a PCB without wifi.
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22-05-2022, 08:43 AM,
Post: #127
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RE: BMW Icom A2 repair
i can not recover the icom, where is the reset switch connected?. over ssh i can connect on 10.2.0.2 but authenticated with, (server sent: publickey)
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22-05-2022, 08:56 AM,
Post: #128
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RE: BMW Icom A2 repair
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Reputation: +1 - paui [+1] | |||
22-05-2022, 09:24 AM,
Post: #129
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RE: BMW Icom A2 repair
i have not this connection for the reset switch
the pcb looks like this |
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22-05-2022, 10:50 AM,
Post: #130
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RE: BMW Icom A2 repair
(10-05-2022, 20:08 PM)ferrum Wrote: Everything points to the fact that 1562 is not working. The reason may be both a breakdown in 1562 and the lack of connections to the processor. Hello, Mr. Ferrum. First of all, thank you very much for your patient answer before. The ICOM A2 that troubled me before has been repaired. The reason is mega16A diswelding, reheating, problem solved!!Thank you again, great respect! |
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