Hello,

I tried the other tablet with broken screen and there the fw_extractor
extracts many files:

/lib/firmware/GSL1680D_FW_66V_M4302_TOP.fw
/lib/firmware/GSL1680D_FW_86VS_CTD_NIUS.fw
/lib/firmware/GSL1680D_FW_86VS_FUHUAFEN.fw
/lib/firmware/GSL1680D_FW_86VS_FW_CTD_A.fw
/lib/firmware/GSL1680D_FW_86VSH_INET.fw
/lib/firmware/GSL1680D_FW_86VSH_INET_V2.fw
/lib/firmware/GSL1680D_FW_86VS_INET.fw
/lib/firmware/GSL1680D_FW_86VS_JINXING.fw
/lib/firmware/GSL1680D_FW_86VS_PG_JIUZH.fw
/lib/firmware/GSL1680D_FW_86VS_SHXWUYIN.fw
/lib/firmware/GSL1680D_FW_86VS_TUOBU_ZH.fw
/lib/firmware/GSL1680D_FW_86VS_V1.fw
/lib/firmware/GSL1680E_FW_66V_M4302_INE.fw
/lib/firmware/GSL1680E_FW_86VS_CTD_SEND.fw
/lib/firmware/GSL1680E_FW_86VS_FW_CTD_A.fw
/lib/firmware/GSL1680E_FW_86VS_GS0060_S.fw
/lib/firmware/GSL1680E_FW_86VSH_INET.fw
/lib/firmware/GSL1680E_FW_86V_SHXHLD072.fw
/lib/firmware/GSL1680E_FW_86VS_INET.fw
/lib/firmware/GSL1680E_FW_86VS_PG_JIUZH.fw
/lib/firmware/GSL1680E_FW_86VS_SHXWUYIN.fw
/lib/firmware/GSL1680E_FW_86VS_TUOBU_ZH.fw
/lib/firmware/GSL1680_FW_haina.fw
/lib/firmware/GSL1680_FW_newdingshengwe.fw
/lib/firmware/GSL1680_FW_TOPSUN_OGS_G70.fw
/lib/firmware/GSL2682A_FW_86FV_TOPSUN_G.fw
/lib/firmware/GSL3680_FW_shenghexiang00.fw
/lib/firmware/gsl_load_fw.fw
/lib/firmware/GSLx680_FW_85V_M501V.fw
/lib/firmware/GSLX680_FW_86V_TOPSUN_OGS.fw
/lib/firmware/GSLx680_FW_NEWDINGSHENGWE.fw

I read the writing on the chip and it appears to be a GSL1680 (without
a letter appended) so I tried all firmware that don't have a letter at
the end.

However, none works. I also tried some other random firmware from the list.

Problem is loading new firmware requires editing script.bin and reboot.

This is lengthy and error-prone.

On the tablets where some firmware works can the controller be
uploaded with wrong firmware, reset, uploaded with right firmware and
still work?

If so you could just specify a list of firmware files and try all.

If not then all this testing is dubious. What guarantees that the
controller is reset on reboot on device that has battery?

Also the stop error is probably normal and happens at random.

On both tablets there is a device other than the touch controller on
the i2c bus (on address 15 on one and 18 on other). Presumably the
other device may use the bus sometimes.

Thanks

Michal

> On 10 November 2014 22:05, Joe Burmeister <[email protected]> wrote:
>> Hi,
>>
>> Ignore fw_info. It knows about such a small fraction of the registers it can
>> be ignored.
>> In fact, I've just removed it, it only confuses.
>>
>> The old extractor was floored in the way if found firmware, that's why it's
>> dumped.
>> In the git repos now, there is only fw_extractor.py which is the new one
>> replacing the old.
>>
>> As to which firmware to use, the only way is suck and see for each. :-\
>>
>> Hope this helps.
>>
>> Joe
>>
>>
>>
>>
>>
>> On 10/11/14 16:45, Michal Suchanek wrote:
>>>
>>> Hello,
>>>
>>> I tried extracting firmware from my pmp3670b tablet and I got 4
>>> firmware files with fw_extractor2.py. Unfortunately, fw_info does not
>>> recognize any of them as firmware:
>>>
>>> $ python /scratch/Downloads/fw_extractor2.py modules/A13_gslX680.ko
>>> Found GSLX680_FW offset 180 count 39072
>>> 39072+0 records in
>>> 39072+0 records out
>>> 39072 bytes (39 kB) copied, 0.0768463 s, 508 kB/s
>>> Found GSLX680_FW_2 offset 39252 count 39336
>>> 39336+0 records in
>>> 39336+0 records out
>>> 39336 bytes (39 kB) copied, 0.073385 s, 536 kB/s
>>> Found GSLX680_FW_3 offset 78588 count 39336
>>> 39336+0 records in
>>> 39336+0 records out
>>> 39336 bytes (39 kB) copied, 0.0800411 s, 491 kB/s
>>> Found GSL_TEST_FW offset 117988 count 8184
>>> 8184+0 records in
>>> 8184+0 records out
>>> 8184 bytes (8.2 kB) copied, 0.0161824 s, 506 kB/s
>>>
>>> $ for i in /scratch/pmp3670b/GSL*.fw ; do ./fw_info $i ; done
>>> /scratch/pmp3670b/GSL_TEST_FW.fw doesn't contain any known firmware
>>> information.
>>> /scratch/pmp3670b/GSLX680_FW_2.fw doesn't contain any known firmware
>>> information.
>>> /scratch/pmp3670b/GSLX680_FW_3.fw doesn't contain any known firmware
>>> information.
>>> /scratch/pmp3670b/GSLX680_FW.fw doesn't contain any known firmware
>>> information.
>>>
>>> I have old firmware extracted from my broken inet 86vs tablet and from
>>> that the old fw_extractor extracted 35 firmware files out of which 2
>>> are recognized as firmware:
>>>
>>> $ ls Manta_MID705_gslx680.fw*
>>> Manta_MID705_gslx680.fw     Manta_MID705_gslx680.fw.11
>>> Manta_MID705_gslx680.fw.20  Manta_MID705_gslx680.fw.30
>>> Manta_MID705_gslx680.fw.02  Manta_MID705_gslx680.fw.12
>>> Manta_MID705_gslx680.fw.21  Manta_MID705_gslx680.fw.31
>>> Manta_MID705_gslx680.fw.03  Manta_MID705_gslx680.fw.13
>>> Manta_MID705_gslx680.fw.22  Manta_MID705_gslx680.fw.32
>>> Manta_MID705_gslx680.fw.04  Manta_MID705_gslx680.fw.14
>>> Manta_MID705_gslx680.fw.23  Manta_MID705_gslx680.fw.32.txt
>>> Manta_MID705_gslx680.fw.05  Manta_MID705_gslx680.fw.14.txt
>>> Manta_MID705_gslx680.fw.24  Manta_MID705_gslx680.fw.33
>>> Manta_MID705_gslx680.fw.06  Manta_MID705_gslx680.fw.15
>>> Manta_MID705_gslx680.fw.25  Manta_MID705_gslx680.fw.34
>>> Manta_MID705_gslx680.fw.07  Manta_MID705_gslx680.fw.16
>>> Manta_MID705_gslx680.fw.26  Manta_MID705_gslx680.fw.35
>>> Manta_MID705_gslx680.fw.08  Manta_MID705_gslx680.fw.17
>>> Manta_MID705_gslx680.fw.27
>>> Manta_MID705_gslx680.fw.09  Manta_MID705_gslx680.fw.18
>>> Manta_MID705_gslx680.fw.28
>>> Manta_MID705_gslx680.fw.10  Manta_MID705_gslx680.fw.19
>>> Manta_MID705_gslx680.fw.29
>>>
>>> However, the old extractor does not seem to like the pmp3670b module.
>>> I never get any firmware out of it.
>>>
>>> Any suggestions?
>>>
>>> Thanks
>>>
>>> Michal
>>>
>>>
>>> On 1 October 2014 23:00, Joe Burmeister <[email protected]>
>>> wrote:
>>>>
>>>> Hi Kristijan,
>>>>
>>>> Not sure quite what your after, but here is a new, not tested yet (would
>>>> have to dig up the tablet), firmware extractor.
>>>>
>>>> It uses just readelf, objcopy and dd. Quick and dirty "python for shell"
>>>> implementation.
>>>>
>>>> Hopefully this should help.
>>>>
>>>> Joe
>>>>
>>>>
>>>>
>>>> On 01/10/14 10:00, Kristijan Vrban wrote:
>>>>
>>>> Hello,
>>>>
>>>> attached is a gslX680.ko module from a Q88 A23 based tablet (the cheap
>>>> USD
>>>> 32 devices) I just started to extract the firmware to use gsl1680 IC with
>>>> the touch panels that are used in this Q88 devices.
>>>>
>>>> I think "GSL1680_K70_FW" should be the one. from this module.
>>>>
>>>> Attached is also a small PCB design made in eagle to make test connection
>>>> between that touch panels and I2C interface. Maybe it is useful for
>>>> someone.
>>>>
>>>> Kristijan
>>>>
>>>>
>>>>
>>>>
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>>
>>
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