The phones work fine and they're paid off! No all of a sudden I have to purchase new? What a scam!
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Sprint used CDMA. Only they and Verizon used this format
When companies started switching to 4G, phones became more standardized but the CDMA/GSM division still remained for Sprint/Verizon versus AT&T/Tmobile (GSM is basically what they rest of the world used as well)
Since T-mobile is turning on their 5G capabilities, and most phones are 4G capable, they would be turning off the last of the CDMA towers which would kill your older Iphone.
Just buy a used unlocked 4G GMS phone and you will be fine. Use ebay or swappa.com to find a deal
Hey, T-Mobile used GSM 1900 PCS. Sprint used CDMA 1900 PCS. 4G is Long Term Evolution (LTE) and is an evolution out of GSM. Essentially, when the wireless companies moved to 3G, the companies, Sprint & Verizon, had to migrate from CDMA to the GSM standard, UMTS, for data network because Qualcomm did not have their data evolution of CDMA ready to go, and the New World Order wanted GSM, their global standard. T-Mobile towers were originally PCS towers. No towers were retired. Last of the 2G networks were sunset last year, last of the 3G networks sunset this year. Only true 5G network is Verizon because they became the specification test market for the 3GPP Working Group, international wireless standards body. AT&T is deploying now but hamstrung by their financials --- TimeWarner merger fallout, same with T-Mobile, just a poor company living off the land like Sherman's march through the South. Both Verizon and AT&T do not have enough FCC Spectrum to take advantage of max capabilities of 5G, perhaps with frequency sharing by 2025. T-Mobile has the spectrum capability but not the money to deploy 5G because of their Sprint purchase. T-Mobile parent company, Duetsch Telecom just sold a European network, so they may save the day for T-Mobile USA. Then T-Mobile USA has to worry about plugging into the Duetsch Telecom Huawei equipment, which is verboten here in the USA. Did I fail to mention the USA Government sanctioned monopoly on the FCC 2500MHz frequencies, which was the plum in the Worldcom-Numarix-Nextel-Clearwire-Sprint mergers, and why T-Mobile took the lovers leap. Kind of smells like the AT&T run on TimeWarner, except a bit closer to their wireless home. The New World Order just doesn't quit, let's just hope they collapse. Oh well, here's to hope, without reference to Hope, Arkansas.
Pretty much this. Reclaiming those old CDMA and GSM frequencies for 5G; the 4G LTE bands were new spectrum 7-8 years ago, so they're still usable alongside 5G.