SIM900 Customer Flash Loader

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Hi,,
I'm seaching for "sim900 Customer flash loader V1.01"
named in the AN_SIM900_Update Tool_UGD_V1.01, attached here

Give me a reply,

Best regards
 

Hi Friend,
How are you? I want to connect SIM900 with computer for my testing.... So for this purpose I want to make PCB with serial interface. Can you pls help me to design this PCB ? I would appreciate if you will help me out.

Regards,
Ali Ahmad
 
May be this one? Have fun!

Note: Look attachment
 

Attachments

  • SIMCOM FLASH UPDATE TOOL V1.10 (DVersion).rar
    143.8 KB · Views: 1,961
Dear Friend,
Thanks alot for your reply but I don't want to upgrade the SIM900 Firmware. I want to connect it on computer via serial for testing on hyperterminal like EVB so if you have any information about it pls let me know how do I design its pcb? I would appreciate your understading on the quoted question.

Regards,
Ali
 

Hello, here you go...

See that the .pdf attached is a little newer than yours. It shows that the flash loader tool uses .cla files to upgrade.

I have to tell you I can´t make it work, it always give an error after the message "Flash Loader downloaded in RAM". The error is "err 506", and I can´t find what it´s. Please let me know if it works for you !! Lucky for you...
 

Attachments

  • SIM900.zip
    2.7 MB · Views: 1,733
Hello Coleagues,
I can finally make it work !! It was just a problem of data rate, it was selected "1152000" instead of "115200"....Unbelievable, but I have lost 1 day because of this !!

By the way, does anybody have a Firmware version "1137b07SIM900b32_ST" ?
 

Does anyone have this flash version:

1137B06SIM900D64_ST

Thanks.
 

Kosh - can you confirm the firmware rev please? There are no 1137B06... versions on the Simcom FTP site. They go from 1137B05.. to 1137B07...
 
I've got that version. Also got the B07 and B08 versions.

Thanks.
 

Hi fmp

on the Sim900 EVB there is a switch called "Download" which is in parallel with the PWRKEY. This must be on otherwise you get various errors including the err 506. See attached file SIM900-EVB_v1.01_DL.pdf. Basically just short the PWRKEY inpit on the SIM900 to ground while downloading.
 

Attachments

  • SIM900-EVB_V1.01_DL.pdf
    246.2 KB · Views: 685

thank fmp. I can update with speed 115200.

I need firmware B08. Does anyone have flash version B08?
 

Chaitana

Please let me know which version you currently have (32 or 64) - use AT+GSV to get the version and I will post the appropriate B08 version on Monday
 

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chipseller

I use Revision:1137B07SIM900M64_ST. I found on this thread. Before update sim900 is xxxxB05SIM900XXX_ST. I have 2 sim900 in this release. Other I not sure. It's waiting for process not on pcb.
After update, I can fix problem on AT+CREG to register sim to provider. Some time, On XXXB05 I wait 1 minute to register. I think, SIM900 found some problem. So SIM900 retry in 1 munute.
In my application ( prepaid mobile topup machine ) use 3 sim switch to SIM900 for 3 operator. It take many switch on/off. more many problem on new AT+CREG to register sim.
 

here is the version you need Chaltana. Please let me know if I can assist you further
 

Attachments

  • 1137B08SIM900M64_ST.rar
    6 MB · Views: 948
Hi chipseller could you please help me, I need 1137B03SIM90032_ST o 1137B07SIM90032_ST I can´t find them.
 

Hi Lucho1045
1137B03SIM90032_ST is no longer available from the simcom vault. I have attached 1137B07SIM900A32_ST
 

Attachments

  • 1137B07SIM900A32_ST.rar
    6 MB · Views: 942
Where is it attached?

Ok thanks.
 

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