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Hello, I purchased two GenTouch78s and they both have the same MAC address of 00:03:7F:0E:A2:19. I thought each device should have it's own MAC address. When either one is on alone wifi connectivity is fine. When both of them are on at the same time they are assigned the same IP address and I receive network errors but do get some connectivity to GMail and the web via the web browser. Any thoughts?Paul
 

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mogrith;29361 said:
[email protected] that's my mac address also. Do they all have the same one?
more than likely. Probably set by the firmware which all of them have been loaded with the same copy... now you need a tool to change the mac addresses... I don't know of any(any longer) offhand, but I'm sure that someone will pop by shortly with a suggestion... you might even be able to do it with a terminal and the shipped linux tools, but you'll need someone who's looked into to it more recently than I've had to, and knows more about what comes with the GT fw, or can point you to the tools needed(if any).I wouldn't be surprised if other mfg tablets are the same way...
 

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Now that is funny!!!!
 

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I should mention I'm still laughing...
 

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They just rebranded a cheap Chinese tablet and obviously did no testing on their own. Typical the Chinese manufacturers use one MAC addess they stole from somewhere and clone it as they are not members of the alliance that issues the MAC addresses. They do the same thing with cheap Chinese phones, just steal IMEI sequences from Nokia but at least change them; but somewhere in the world is a Nokia with the same IMEI. This looks like a good class action lawsuit againt Gentouch. Go for it guys.
 

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Three interesting things come to mind:- If the wireless hardware is Atheros then it should be possible to change the MAC from software, if they're using the open source Atheros 'madwifi' drivers then one linux-based tool is called macchanger.- Atheros wouldn't have shipped all of their Wifi chipsets from the factory with the same MAC, unless it's either (a) a collosal mistake, (
a dodgy Atheros ripoff in hardware (unlikely but possible) or (c) the MAC is being changed to this value in software.- If the MAC is being set explicitly in software, this reminds me of the licensing protection mechanism that Aiteer put into the firmware that Eken use. They match the MAC to another serial number stored inside the SoC, and a potential way to bypass that protection mechanism would be set both the serial number and MAC to a known "OK" value in software.I'm not suggesting that's what happened here, because the Augen is running with a different Android version and hardware to the Eken - and we don't know who ported it. But it's not impossible. It's just as possible that it was overriden for testing purposes and they forgot to take it out of the production firmware build.Does anyone have either (a) teardown photos at a good resolution or (
a firmware dump from the Augen?(*)(*) Or do you want to mail one to me in Australia so I can provide these two things. ;)
 

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What basis do you have to believe it's a "class action lawsuit?" What are your damages, other than the cost of the device, which is within the return period because it's been out for two weeks? What are you going to ask for? "Judge, I bought this, and during the return period I decided to sue because I can't use more than one on the same wireless router, and that means I can't... go to starbucks with my friends." How exactly are you mitigating your damages in that way? Do you have a bar license? What state? You are aware it's illegal ie. actionable in most places to give legal advice without a license, right?If you have a beef with the GT, return it. At this point that seems advisable. I wouldn't bank on getting anything out of a lawsuit here.
 

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do WE care who augen is? At this point?
 

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projectgus;29542](a) a collosal mistake said:
Maybe it's not this complex. That MAC turns up in a pastebin of a dmesg posted today, no idea who posted it ('linckraker' on the XDA forums, maybe? or maybe a totally different device?) With some interesting parts: pastebin linkInteresting part:
<4>read_eeprom_from_file file offset opsition: 0h<4>read_eeprom_from_file: length=768<4>read_mac_addr_from_file try to open file /data/softmac<4>read_mac_addr_from_file: file /data/softmac filp_open error<4>eeprom_ar6000_transfer: read_mac_addr_from_file failed<4>disable_SI<4>AR6000: BMISetAppStart<4>AR6000: enable HI_OPTION_TIMER_WAR<4>AR6000: firmware_transfer*snip*<4>ar6000_init() Got WMI @ 0xc9f3e400.<4>mac address = 00:03:7f:0e:a2:19<4>ar6000_init() WMI is ready
So, looks like the AR6000 chipset using the OEM driver from Atheros.Linckraker has also posted a link to a bunch of Augen firmware files: Index of /augenIf you can get access to the filesystem, it looks like putting a MAC address into /data/softmac (not sure what format) might solve your problems.
 

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projectgus;29542]Three interesting things come to [URL=mind:-]mind:-[/URL] If the wireless hardware is Atheros then it should be possible to change the MAC from software said:
It's not madwifi. That's for a completely different kind of hardware. This is the driver for the chipset they're using: nv-tegra.nvidia.com Git - 3rdparty/atheros.git/summary
- Atheros wouldn't have shipped all of their Wifi chipsets from the factory with the same MAC, unless it's either (a) a collosal mistake, (
a dodgy Atheros ripoff in hardware (unlikely but possible) or (c) the MAC is being changed to this value in software.
They don't ship these chips from the factory with MAC addresses at all. It's the responsibility of the device manufacturer to obtain a valid block of MAC addresses from the IEEE.
- If the MAC is being set explicitly in software, this reminds me of the licensing protection mechanism that Aiteer put into the firmware that Eken use. They match the MAC to another serial number stored inside the SoC, and a potential way to bypass that protection mechanism would be set both the serial number and MAC to a known "OK" value in software.
That's not it. They were just too cheap to pay the IEEE for an OUI (which is $1650) or they didn't know they needed to. It's just like everything else about this device - hey, those copies of Documents To Go and QuickOffice are legal, right? And the Market? And I'd bet a dollar you won't find a FCC ID anywhere on the device or on the documentation even though they put the FCC logo on it...
 
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