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How to use GSM simcard after upgrade 4G LTE card?

Hi all!
After i upgraded LTE card form Motorola, I use the 3G GSM sim card but the notify show " The Sim Card unknown source". How to use the GSM SIM card ?
Thanks and best regads,

Can't, LTE Xoom is still CDMA, not GSM.

[Q] GSM SIM to R-UIM is it possible?

I am interested to know if it is possible to copy the contents of a carrier GSM sim to an R-UIM card?
I have a CDMA phone with GSM capabilities and accepts R-UIM cards. I would like to use it with a SIM but for obvious reasons the phone doesnt read SIM cards, only UIM standards.
I would like to know if there are any methods to copy the GSM sim application of a carrier SIM to the GSM portion of a UIM card.
I am by no means knowledgable on Smartcards so if this question is idiotic, please forgive me.

[Q] CDMA SIM card possible?

I have an unlocked D2G,
it's fine with GSM sim cards, but I wonder if it can use other CDMA/WCDMA SIM cards?

There are no CDMA SIM cards. They're called RUIM cards. The D2G does not support RUIM cards.
WCDMA is GSM.

Gasai Yuno said:
There are no CDMA SIM cards. They're called RUIM cards. The D2G does not support RUIM cards.
WCDMA is GSM.
Click to expand...
Click to collapse
I think there are CDMA SIMs.
The Asia Pacific Telecom (Taiwan) uses CDMA2000, and they use SIM cards.
Because I would like to switch to it, I need to know if D2G support CDMA SIMs or not.

tennyleaz said:
I think there are CDMA SIMs.
The Asia Pacific Telecom (Taiwan) uses CDMA2000, and they use SIM cards.
Because I would like to switch to it, I need to know if D2G support CDMA SIMs or not.
Click to expand...
Click to collapse
Repeating. Because apparently you don't understand what you are talking about.
The D2G only supports USIM. USIM is Universal Subscriber Identity Module; it's a piece of software that runs inside the UICC (Universal Integrated Circuit Card).
USIM is stored on the UICC cards made for GSM.
CSIM (CDMA Subscriber Identity Module) is stored on the UICC cards made for CDMA. The previous generation of hardware (smartcards) used for this purpose is called RUIM.
CDMA carriers that use UICC/RUIM cards do not support USIM, only CSIM. It's impossible to use pure USIM cards with CDMA due to the differences in USIM and CSIM software. Vice versa, pure CSIM cards cannot be used with GSM.
Although an UICC can include both CSIM and USIM, the D2G does not support CSIM and RUIM. It only supports USIM on UICC.
Please re-read this again in case you still want to ask if it supports “CDMA SIM cards”.

[Q] Flash GSM radio in CDMA phone?

Hi i buy one used HTC EVO 3D CDMA(no sim slot), but i use WCDMA/3G or GSM carrier (with SIM card).
Please someone know if:
1 - If buy USB SIM reader in ebay, may i get all information needed from SIM to flash in CDMA ship?
2 - If flash the radio of HTC EVO 3D GSM version in the CDMA version, i can use this in GSM network? or hardware are diferent?
Thanks you

I find this patch for android to enable global CDMA phone to work in GSM network, but who i know if HTC EVO 3D is global phone?
"If you have a Global Phone for CDMA Network and you want correctly use it on GSM Network than you have to edit the build.prop file to fully enable the GSM\UMTS and you have to set APNs to use 3g data"
http://www.internauta37.altervista.org/how-and-patch-fully-enable-gsm-verizon-cdma-phones-android

[Completed] Can a cdma phone (with a sim card slot) be flashed to allow gsm carrier sim cards

i bought a Us Cellular phone off ebay and since it has a sim card slot, i assumed it would work with my gsm sim card. it didnt. my question is that is it possible to flash it from being cdma to work with a gsm sim.

Hi, thank you for using XDA Assist. Generally it is not possible. Whether it is cdma or gsm is hardware dependent.