HTC 620 Excalibur doesn't work in Japan?! - HTC Excalibur

Hello,
I live in Japan, and recently I bought a HTC 620 from America. It was billed as being "unlocked" - great, I thought, I'll just put in a SIM card from a Japanese provider, and away I go.
Unfortunately, when I received the device and set it up, everything worked fine except for the SIM card. It just says "Searching..." for the provider.
I used the same SIM I'm using for my X01HT (flashed to WM6). I also tested another Softbank SIM card, and in desperation I even tried a Docomo FOMA SIM chip - none of these work.
Does anyone know whats going on here? I'm assuming I don't need to SIM unlock - is this phone a throwaway? Can I make it work somehow?
If you can help, I would be very grateful for a reply.
Thanks guys,
Logimob

Japan 2100 mhz UMTS for voice
If i remember correctly Japan uses UMTS on 2100 mhz for voice service. You would need a phone that has that band. The Excalibur has 850/900/1800/1900 mhz and no UMTS. It will not work.

Related

Two question about the ASUS P535 (phone module)

I'm sure that this device is usable in europe (gsm 900/1800), owever can I use it in the USA ????
Second question...if I'm using the GPRS connection, at the same time, can i receive a call??
Tnks, to all!
since us is 900/1900 and eu is 900/1800
you can use it in us if you can find a place where they are running 900
and yes GPRS should not blok the phone from working as a phone
....tnks!!
Rudegar said:
since us is 900/1900 and eu is 900/1800
you can use it in us if you can find a place where they are running 900
and yes GPRS should not blok the phone from working as a phone
Click to expand...
Click to collapse
US is 850/1900 (not 900). Most carrier support 1900 but you got extra coverage in area where only 850 is exist.
I use it (Taiwan version) in California. It works, but TomTom6 still not useable. I already order the US map, let's see what's going on.

No 3G service (movistar venezuela)

hi everyone, I have a rhodium global edition (it came with a sim lock but i bought the sim unlocker =) ) everything is o.k., the phone now accepts mi movistar sim but the battery dont seem to last a lot and it never connect with the 3g network, EDGE only, APN is already configured and the movistar band is 850/1900. any ideas?
I test the sim cardon my girlsfriend bold2 and 3g works fine,
I think the European TP2s use 900/2100MHz frequency for 3G, so you won't get any better than EDGE. In order to get 3G, you must use a phone with a radio that uses your provider's frequency or you will be stuck on EDGE.
It's the same issue that people experience when they use European TP2s in the US as ATT uses 850MHz.
Perhaps if you gave us more information we could be of better assistance. Which Rhodium do you have? Look under the battery. There should be a model number like Rhod100, Rhod210 or something. Movistar uses 2100MHz 3G band. Depending on your model, the hardware may or may not support this frequency.

[Q] Prepaid SIM for my TP2 in the USA?

Hi,
I'm going to the states soon and wonder if I can just walk into a store and buy a prepaid SIM card that will work with my GSM TP2.
Or do I need "special" CDMA cards?
All I want is to have a number for emergencies, etc..
Thanks in advance!
Markstar said:
Hi,
I'm going to the states soon and wonder if I can just walk into a store and buy a prepaid SIM card that will work with my GSM TP2.
Or do I need "special" CDMA cards?
All I want is to have a number for emergencies, etc..
Thanks in advance!
Click to expand...
Click to collapse
If you have a GSM Rhodium, then you'll need to get a SIM from a GSM carrier here. AT&T and T-Mobile are the top two GSM carriers here. CDMA carriers do not offer SIM cards to anyone except for their own customers going overseas as far as I know. As long as your device is SIM unlocked, then yes, you can just put any SIM card in it, and it will work.
3G coverage will be based on your device model. European Rhodium models will not get US 3G service. AT&T 3G services work on the 850 & 1900 UMTS bands. T-Mobile 3G is on the 1700 & 2100 UMTS bands. The device needs both to work properly on one carrier's 3G service.

[Q] Are any other N7 2013 LTE users having issues with specific carrier SIM cards?

Hi all,
While back in the USA, I was lucky enough to get a new Nexus 7 (2103) 32GB LTE model which shipped with a T-Mobile micro SIM card good for prepaid data access plans. However, I live in the Netherlands and when I tried to use my Nexus with a micro SIM from my provider Vodafone, it was not able to properly list the mobile network operators.
I opened a technical support incident with Google Play services who lead me through several diagnostic steps which included verifying that the tablet is not SIM or carrier locked, it properly recognizes the available networks with other carriers SIM cards (worked with T-Mobile USA, Telecom DE, MTN NG, Rogers CA) it also can list the mobile networks with no SIM in the device. But when a Vodafone SIM is added, it simply doesn't recognize any network operators. It's not a matter of APN settings, as we have verified these are correct, but the problem occurs at a very early level in preventing the mobile networks from being listed.
I believe this to be somehow related to the SIM card/middleware used to communicate with the SIM to the hardware. I see this behavior with the LTE Factory Image JLS36C as well as the Cyanogen Mod 10.2 unofficial deb builds.
Are there any other LTE users that are having a similar problem? Without mobile network access, my LTE model is effectively a WiFi only model and I'd really like to get this fixed.
buckofive said:
While back in the USA, I was lucky enough to get a new Nexus 7 (2103) 32GB LTE model which shipped with a T-Mobile micro SIM card good for prepaid data access plans. However, I live in the Netherlands and when I tried to use my Nexus with a micro SIM from my provider Vodafone, it was not able to properly list the mobile network operators.
Click to expand...
Click to collapse
As has been posted quite a few times already, the US and Europe use different channels for LTE. So a US N7 will not work with all European providers and vice versa. Most probably Vodafone uses one of the LTE channels not supported on the US N7. So you have two choices:
1. Find a different provider that uses the channels supported by the US N7.
2. Replace your current US N7 with an European N7 model.
Guhrasoh said:
As has been posted quite a few times already, the US and Europe use different channels for LTE. So a US N7 will not work with all European providers and vice versa. Most probably Vodafone uses one of the LTE channels not supported on the US N7. So you have two choices:
1. Find a different provider that uses the channels supported by the US N7.
2. Replace your current US N7 with an European N7 model.
Click to expand...
Click to collapse
While the US and Europe do have some variance in LTE bands - we confirmed that the bands used by Vodafone NL are as listed below:
Nexus 7 (2013) Tech Specs (LTE)
Network
North America and Japan:
GSM: 850/900/1800/1900 MHz
HSPA+: 850/900/1900/2100/AWS (1700/2100) MHz (Bands: 1/2/4/5/8)
LTE: 700/850/1700/1800/1900/2100 MHZ (Bands: 1/2/3/4/5/13/17)
Rest of World:
GSM: 850/900/1800/1900 MHz
HSPA+: 850/900/1900/2100/AWS (1700/2100) MHz (Bands: 1/2/4/5/8)
LTE: 800/850/1700/1800/1900/2100/2600 MHz (Bands: 1/2/3/4/5/7/20)
Wireless
Dual-band Wi-Fi (2.4G/5G) 802.11 a/b/g/n
We confirmed that Vodafone NL use 4G data enabled in a combination of the 800MHz and 1800MHz bands which are listed as supported.
The fact that my N7 can connect to other mobile networks in Europe with other carrier SIM cards also disproves the need to get a "European" model to connect to a network. There clearly is a problem with the Vodafone SIM and the NA Nexus, but simply blaming it on the channel or bands is not correct. Addittionally, even if the LTE connection is not possible 3G connection via HSPA+ or 2G GSM connection should be possible. The same Vodafone SIM worked with my N7 2013 3G model, which was also from NA, so it is clearly not an issue with the bands & channels.
Have you tried manually changing your prefered network type in testing menu *#*#4636#*#*
Since there is no dialler on N7 deb, I use https://play.google.com/store/apps/details?id=org.freespirit.hms&hl=en
From tablet info submenu, u can also use settings button (3 dots) to manually select radio band
Raverbunny said:
Have you tried manually changing your prefered network type in testing menu *#*#4636#*#*
Since there is no dialler on N7 deb, I use https://play.google.com/store/apps/details?id=org.freespirit.hms&hl=en
From tablet info submenu, u can also use settings button (3 dots) to manually select radio band
Click to expand...
Click to collapse
Thanks for the tips regarding the Hidden Menus application. I've installed it and set the GSM/UMTS band to EURO Band (GSM-900/DCS-1800/WCDMA-IMT-2000) but still not had any luck detecting mobile networks with the Vodafone SIM inserted. After removing the SIM and restarting, performing the same operation to search for available networks shows the four network operators in this region. I'm currently in Germany and in this area it shows
E-Plus
o2- de
Telekom.de
Vodafone.de
If I replace the Vodafone NL sim and try the same operation again, Settings | Mobile Networks | Network Operators - it searches for only a second or two (compared to the 15 or so it takes with no SIM installed) then does not show any networks.
All signs point to the issue being with the SIM chip OS or incompatability of the SIM chip profiles with the Nexus 7 (2013) LTE model. I didn't have any issues with this and my Nexus 7 (2012) 3G version.
In another strange hardware related issue, I have noticed that the Nexus 7 (2013) uses a different NFC stack and does not recognize all of the NFC tags that the 2012 model recognizes. A co-worker with the 2013 Wifi only version ordered some NFC tiles but they don't work with either his or my 2013 model, but work with the 2012 model. Very curious if this is somehow related to the issue that I see with the SIM card problem I am having.
Any other ideas?
Did you find a solution?
buckofive said:
Thanks for the tips regarding the Hidden Menus application. I've installed it and set the GSM/UMTS band to EURO Band (GSM-900/DCS-1800/WCDMA-IMT-2000) but still not had any luck detecting mobile networks with the Vodafone SIM inserted. After removing the SIM and restarting, performing the same operation to search for available networks shows the four network operators in this region. I'm currently in Germany and in this area it shows
E-Plus
o2- de
Telekom.de
Vodafone.de
If I replace the Vodafone NL sim and try the same operation again, Settings | Mobile Networks | Network Operators - it searches for only a second or two (compared to the 15 or so it takes with no SIM installed) then does not show any networks.
All signs point to the issue being with the SIM chip OS or incompatability of the SIM chip profiles with the Nexus 7 (2013) LTE model. I didn't have any issues with this and my Nexus 7 (2012) 3G version.
In another strange hardware related issue, I have noticed that the Nexus 7 (2013) uses a different NFC stack and does not recognize all of the NFC tags that the 2012 model recognizes. A co-worker with the 2013 Wifi only version ordered some NFC tiles but they don't work with either his or my 2013 model, but work with the 2012 model. Very curious if this is somehow related to the issue that I see with the SIM card problem I am having.
Any other ideas?
Click to expand...
Click to collapse
Hello All,
Apologies for the opportunistic first post but I only "discovered" this forum today.
I am facing the same issue as buckofive and was wondering whether anyone has ever found a solution?
Thank you.
ricmartins said:
Hello All,
Apologies for the opportunistic first post but I only "discovered" this forum today.
I am facing the same issue as buckofive and was wondering whether anyone has ever found a solution?
Thank you.
Click to expand...
Click to collapse
Unfortunately, I have not been successful in getting this resolved. I've visited Vodafone several times, but none of their in store personnel have been able to give me any other answer than "it doesn't work" and we also see this with North American Nexus 5 handsets. I've done some addditional testing with other MNO SIM cards with American, Dutch, and German T-mobile SIMs and they work flawlessly and with 4G LTE speed, so it isn't a question of network or band.
The issue is definitely related to the SIM card OS and version. However, Vodafone have been unable to tell me what the SIM vendor is and what the chip operating system is.
Vodafone promised a solution
I have AGAIN asked Vodafone for help and they promised me a solution. I have my doubts ad will post an update next week once i hear back from them.
buckofive said:
Unfortunately, I have not been successful in getting this resolved. I've visited Vodafone several times, but none of their in store personnel have been able to give me any other answer than "it doesn't work" and we also see this with North American Nexus 5 handsets. I've done some addditional testing with other MNO SIM cards with American, Dutch, and German T-mobile SIMs and they work flawlessly and with 4G LTE speed, so it isn't a question of network or band.
The issue is definitely related to the SIM card OS and version. However, Vodafone have been unable to tell me what the SIM vendor is and what the chip operating system is.
Click to expand...
Click to collapse
ricmartins said:
I have AGAIN asked Vodafone for help and they promised me a solution. I have my doubts ad will post an update next week once i hear back from them.
Click to expand...
Click to collapse
Did you hear anything back from Vodafone? They have simply told me they don't support the device and explain that it is due to a North American device, which is simply not true. I've tested with T-Mobile data card from The Netherlands and also from Telekom in Germany and the Nexus 7 2013 gets 40+ Mbps download speeds on those networks. So the issue is clearly related to the Vodafone SIM cards, but no one has been able to give me any insight as to what card OS they are using, so it is very hard to troublehsoot the problem any further.
Two big thumbs down for Vodafone service & support!
Any news on this problem yet? I have exactly the same problem, I can use a KPN sim but my Vodafone sim simply won't work in my US Nexus 7. This sucks, I upgraded to a multisim Red Super subscription to be able to use my new tablet anywhere without having to tether.
I made sure to check which bands the US Nexus supports and figured in a worst case scenario I would simply use 3G instead of 4G. But it won't connect to 3G either
Sorontar said:
Any news on this problem yet? I have exactly the same problem, I can use a KPN sim but my Vodafone sim simply won't work in my US Nexus 7. This sucks, I upgraded to a multisim Red Super subscription to be able to use my new tablet anywhere without having to tether.
I made sure to check which bands the US Nexus supports and figured in a worst case scenario I would simply use 3G instead of 4G. But it won't connect to 3G either
Click to expand...
Click to collapse
I have the issue as well. openend a ticket with Vodafone and directed them to this thread. unfortunately they were thus far also not able to solve it yet. hopefully something will happen, as otherwise I will need to drop Vodafone....
I also tested it with a KPN sim which worked perfectly. two Vodafone sims and a duo sim all had the same issue. Real strange thing is that with the KPN sim I was able to see the Vodafone network. But on the Vodafone sim I wasn't able to see any network. They assured my it was not a 4G only sim card, thus it was also strange the nexus did not pick a 2G or 3G network. In the settings though I could not change the 4G perferred setting to either 2G or 3G. it immediately reverted back to the 4G setting....
All in all, no realy help yet, only confirmation of what is being seen above.
pwvandeursen said:
I have the issue as well. openend a ticket with Vodafone and directed them to this thread. unfortunately they were thus far also not able to solve it yet. hopefully something will happen, as otherwise I will need to drop Vodafone....
I also tested it with a KPN sim which worked perfectly. two Vodafone sims and a duo sim all had the same issue. Real strange thing is that with the KPN sim I was able to see the Vodafone network. But on the Vodafone sim I wasn't able to see any network. They assured my it was not a 4G only sim card, thus it was also strange the nexus did not pick a 2G or 3G network. In the settings though I could not change the 4G perferred setting to either 2G or 3G. it immediately reverted back to the 4G setting....
All in all, no realy help yet, only confirmation of what is being seen above.
Click to expand...
Click to collapse
I wouldn't hold your breath waiting on the response from Vodafone. I've had a ticket open for months with them, and it supposedly has been escalated. I've inquired in person with the so called "specialists" and they simply say it doesn't work with their SIMs. Yet nobody can tell me anything about the SIM, like manufacturer card OS, etc. It is really frustrating to hear this as I work with smart card and SIM middleware developers and if we had a bit to work with we might be able to fix the problem on our own.
I was at the end of my rope and extreme frustrated with them and wanted to cancel my contract, but they said that despite me paying for months of service that I haven't been able to use, that I would have to pay the remaining duration of my contract before I could switch to T-Mobile, which I think is total crap.
dual sim same problem with vodafone NL
I have the same issue. I use a dual sim from Vodafone in my Nexus 5 and Nexus 7. The Nexus 5 does not show these problems, but the 7 does. When I buy prepay mobile data abroad (Europe, Asia, US, Australia), the Nexus 7 2013 C works great with e.g. Orange, t-Mobile, Vodafone etc. But as my cellular subscription is a corporate one, at home I have to stick to wifi, for almost 2 years now! (I bought the 7 in Australia about 2 years ago). And yes exchanging sims between the devices does not make a difference. The combination vodafone NL sim + nexus 7 does not provide mobile data.

LG G3: a big problem with 4G

Hi, i have a big problem with my LG G3 bought on january of this year. the version is the D855, italian warranty (as i am italian). from the moment which i put my SIM into the cell phone i noticed that it doesn't connect to 4G network (as just it found a 4G connectivity it started to search another network till it'd have found a 3G/H+ connectivity), delivered twice to the customer service (so i staied two months without mobile), LG wasn't able to solve the issue said that their test on the network was all right, now i found the only one provider that works with my device (i'm talking about H3G, before,when i bought it, i had Vodafone, but i have tried Wind and Tim though), but now i want to change it because it costs an arm and a leg, and i want to solve this problem by myself (as LG do nothing to solve it) and it seems there is no one with my same issue in the world wide, so what it would be a probably solution??? ask for other infos if you need!!!
ascone96 said:
Hi, i have a big problem with my LG G3 bought on january of this year. the version is the D855, italian warranty (as i am italian). from the moment which i put my SIM into the cell phone i noticed that it doesn't connect to 4G network (as just it found a 4G connectivity it started to search another network till it'd have found a 3G/H+ connectivity), delivered twice to the customer service (so i staied two months without mobile), LG wasn't able to solve the issue said that their test on the network was all right, now i found the only one provider that works with my device (i'm talking about H3G, before,when i bought it, i had Vodafone, but i have tried Wind and Tim though), but now i want to change it because it costs an arm and a leg, and i want to solve this problem by myself (as LG do nothing to solve it) and it seems there is no one with my same issue in the world wide, so what it would be a probably solution??? ask for other infos if you need!!!
Click to expand...
Click to collapse
If LG found nothing wrong with your device, and and only one operator has 4G working on that phone, it means that your phone doesn't support the bands other carriers are offering.
LTE bands for this phone (855) are 700 Mhz,800 Mhz, 900Mhz, 1800 Mhz, 2100Mhz, 2300 Mhz and 2600 Mhz.
Also, worth noticing is that the coverage differs from carrier to carrier.
TonzaTheChosenOne said:
If LG found nothing wrong with your device, and and only one operator has 4G working on that phone, it means that your phone doesn't support the bands other carriers are offering.
LTE bands for this phone (855) are 700 Mhz,800 Mhz, 900Mhz, 1800 Mhz, 2100Mhz, 2300 Mhz and 2600 Mhz.
Also, worth noticing is that the coverage differs from carrier to carrier.
Click to expand...
Click to collapse
i don't think that the problem is that, here are the LTE bands of the main italian carriers (included H3G):
-Telecom Italia: 800 MHz, 1800 MHz, 2600 MHz;
-Vodafone Italia: 800 MHz, 1800 MHz, 2600 MHz;
-Wind Telecomunicazioni: 800 MHz, 2600 MHz;
-H3G (3 Italia): 1800 MHz, 2600 MHz.
i have tried each one of these but the only one that works is H3G indeed and besides is the only one that doesn't own the 800 MHz band, so maybe the problem is that my mobile is not able to connect on this band (although it is available as you mentioned in your specs ). so is there a solution? p.s. on my old G2 work all four of them so it is undeniable that my G3 has a problem, i want just know if this problem is resolvable by myself and how!
whatever thank you for the help

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