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Unfortunately outside of baidu and cdsn (need wechat to download) I can't seem to find any headers
Pmp4 have you verified that you can repackage the extracted bins and write back to the device?
Not sure if it's useful but some Spreadtrum 6531 related sources can be found here:
I found this url with "Spreadtrum Research Download Tool" source code (2.9.7007 version)
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