Openmoko IMEI survey
Hello Openmoko and FreeCalypso communities, I am doing a survey of Openmoko device users to see what portions of Openmoko's IMEI number range (TAC 35465101, a range of 1 million possible numbers) have been used to number the 15 thousand or so devices that have been made, and what portions are unused. Given that fewer than 20 thousand units have been made out of the range of 1 million IMEI numbers, simple logic says that at least 98 numbers out of Openmoko's IMEI range must be still unused, and thus potentially usable for new production of GTA02 verbatim clones and/or FCDEV3B boards which are just the modem part of the GTA02. But I need to make my very best effort to determine WHICH portions of Om's IMEI range have already been used, so I use a different subrange for new device numbering. Unfortunately it appears that no official factory records of IMEI assignments have survived the demise of Openmoko-Inc (I tried asking Sean M-P several times by email, but never heard anything back), hence I am making my best effort to reconstruct this lost knowledge by way of a community survey. To everyone reading this solicitation who owns an Openmoko device: I would love to hear from you if your device falls into one of the following 3 cases: 1: If you have a GTA01 (I have never seen one with my own eyes) as opposed to the more common GTA02, I would love to hear if the first 8 digits of its IMEI are 35465101 (same as GTA02) or something different. 2: If you have a GTA02 hardware variant with "US" bands, i.e., 850/1800/1900 MHz (FCC ID EUNGTA02), as opposed to the much more common "EU" variant (900/1800/1900 MHz, FCC ID EUNGTA02E), same request as above: I would like to know if the first 8 digits of the IMEI are 35465101 or something different. Like with the GTA01, I have never seen a "US" FreeRunner with my own eyes. 3: All Openmoko devices, whether GTA01 or GTA02, "EU" or "US": if the first 8 digits of your IMEI are 35465101, but the following two digits are something other than 16 or 96, I would like to know what those two digits are. The two digits after the 35465101 TAC prefix are the first 2 digits of the 6-digit SNR (serial number) field, and it is the usage of this SNR space that I am after. So far the only Openmoko devices I have laid my hands on have been GTA02 "EU" version units, their TAC has always been 35465101, and the SNR field has always been either 16 on older units or 96 on newer ones. However, if there have been Openmoko devices made with something other than 16 or 96 in the SNR field of the IMEI, I would really like to know about them so I can avoid stepping on those subranges and pick a subrange that has not been used at all. TIA for your participation in the survey, Mychaela Falconia Mother of FreeCalypso www.freecalypso.org ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Openmoko IMEI survey
The US GTA02 I still have (FCC EUNGTA02) uses 3546510116x. I have not tried inserting a SIM, but I have heard that frequencies have been repurposed and that it probably wouldn't work in the US and more. On Fri, 18 Aug 2017 15:12:21 -0800 Mychaela Falconia wrote: > Hello Openmoko and FreeCalypso communities, > > I am doing a survey of Openmoko device users to see what portions of > Openmoko's IMEI number range (TAC 35465101, a range of 1 million > possible numbers) have been used to number the 15 thousand or so > devices that have been made, and what portions are unused. Given that > fewer than 20 thousand units have been made out of the range of > 1 million IMEI numbers, simple logic says that at least 98 numbers > out of Openmoko's IMEI range must be still unused, and thus > potentially usable for new production of GTA02 verbatim clones and/or > FCDEV3B boards which are just the modem part of the GTA02. But I > need to make my very best effort to determine WHICH portions of Om's > IMEI range have already been used, so I use a different subrange for > new device numbering. > > Unfortunately it appears that no official factory records of IMEI > assignments have survived the demise of Openmoko-Inc (I tried asking > Sean M-P several times by email, but never heard anything back), hence > I am making my best effort to reconstruct this lost knowledge by way > of a community survey. > > To everyone reading this solicitation who owns an Openmoko device: I > would love to hear from you if your device falls into one of the > following 3 cases: > > 1: If you have a GTA01 (I have never seen one with my own eyes) as >opposed to the more common GTA02, I would love to hear if the first >8 digits of its IMEI are 35465101 (same as GTA02) or something >different. > > 2: If you have a GTA02 hardware variant with "US" bands, i.e., >850/1800/1900 MHz (FCC ID EUNGTA02), as opposed to the much more >common "EU" variant (900/1800/1900 MHz, FCC ID EUNGTA02E), same >request as above: I would like to know if the first 8 digits of the >IMEI are 35465101 or something different. Like with the GTA01, I >have never seen a "US" FreeRunner with my own eyes. > > 3: All Openmoko devices, whether GTA01 or GTA02, "EU" or "US": if the >first 8 digits of your IMEI are 35465101, but the following two >digits are something other than 16 or 96, I would like to know what >those two digits are. > > The two digits after the 35465101 TAC prefix are the first 2 digits of > the 6-digit SNR (serial number) field, and it is the usage of this SNR > space that I am after. So far the only Openmoko devices I have laid > my hands on have been GTA02 "EU" version units, their TAC has always > been 35465101, and the SNR field has always been either 16 on > older units or 96 on newer ones. However, if there have been > Openmoko devices made with something other than 16 or 96 in > the SNR field of the IMEI, I would really like to know about them so I > can avoid stepping on those subranges and pick a subrange that has not > been used at all. > > TIA for your participation in the survey, > > Mychaela Falconia > Mother of FreeCalypso > www.freecalypso.org > > ___ > Openmoko community mailing list > community@lists.openmoko.org > http://lists.openmoko.org/mailman/listinfo/community > ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Openmoko IMEI survey
Ben Deering wrote: > The US GTA02 I still have (FCC EUNGTA02) uses 3546510116x. Thank you for the info! Thanks to this tidbit from you, we know now that FIC was quite lax in (not) following the official IMEI rules, using the same TAC (the first 8 digits of the IMEI) for devices with different frequency band hardware configs, which is a no-no per the official rules... I am still waiting for confirmation on that one, but it also appears that they used the same TAC for both GTA01 and GTA02, contrary to the official rule that the TAC must be different for every new model no matter how minor the change is. (The *only* difference they allow to exist within one TAC is the case color!) The entry for TAC 35465101 in GSMA's IMEI database lists the manufacturer as "FIC" (not Openmoko) and the model as "FIC Neo1973 Smartphone", so all evidence suggests that it was originally obtained for GTA01 and later reused for GTA02. The same IMEI database entry also lists the frequency bands as "GSM 1800,GSM 1900,GSM 900", so clearly the reuse of the same TAC for the "US" GTA02 version was a later hack. My own opinion: while I do not particularly agree with reusing the same device type code (TAC) for devices with different frequency bands in the hardware, I fully applaud FIC (or was it OM after they split off?) for breaking the absolutely idiotic rule about getting a new TAC for every change in the hardware model, no matter how invisible and irrelevant a change like GTA01->GTA02 is from the perspective of GSM networks. Seeing FIC (or OM) take the TAC that was officially assigned for GTA01 devices only and reuse it for the GTA02 will certainly help me justify further reusing the same TAC for my GTA02- derived FCDEV3B modems. :-) > I have not tried inserting a SIM, but I have heard that frequencies > have been repurposed and that it probably wouldn't work in the US and > more. I live in USA-occupied Incalia (one of the ancient names for the continent now called North America), specifically on land which USA wrongfully and forcibly took from Mexico (California), and I use nothing but GSM/2G cellular devices. Furthermore, none of these GSM/2G devices that I use even have that "US" 850 MHz band, instead they are all "European triband" or what I call tri900 in FreeCalypso, i.e., 900/1800/1900 MHz, and they make use of the GSM/2G services in the 1900 MHz PCS band. The operator is T-Mobile USA. The FCDEV3B modem board I have built is a clone of the tri900 ("EU") version of the GTA02 in RF hardware terms. I would not know how to build a tri850 version unless someone tells me what SAW filter part number I should populate for the 850 MHz band in the place of the B7820 for the 900 MHz band. I am hoping to never need to build Om-style tri850 hardware and to go directly to quadband instead (following TI's Leonardo+ and E-Sample designs) for my next hardware iteration. M~ ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community