COAI seeks government help to deal with faulty 4G dual-sim smartphones using MediaTek

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The Cellular Operators’ Association of India, which includes Bharti Airtel, Vodafone India, Idea Cellular and Reliance Jio Infocomm, said there was a problem with 4G-enabled, dual-SIM smartphones using MediaTek’s chipset: the flow of data in the primary 4G SIM slot was hampered when a 4G LTE-only SIM was placed in the second slot, meant for 2G SIMs. 

Placing a 4G LTE-only SIM in the second slot “significantly deteriorates the throughput of any other operator’s 4G SIM present in the main slot by as much as 40%,” the COAI said in the letter. 

However, there was no such impact if a 4G LTE-only SIM was put in the first slot and a 4G SIM was in the second slot. MediaTek,
the Taiwan-based chipset manufacturer, acknowledged there were recent reports of technical glitches in handsets and said the company is treating the issue with utmost priority. 

“We are working closely with all the telecom operators to get to the bottom of this. MediaTek’s solutions are globally compliant and completely adhere with global standard bodies-defined guidelines,” a MediaTek India representative said in an emailed statement to ET. 

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Govt seriously need to consider Device certification organisation like FCC in USA ASAP  :dodgy
 
This issue is not restricted to MediaTek. In my SD 410 SOC with Jio sim on slot 2 and voda in slot 1 Vodafone 3G barely touches 3Mbps but if Jio sim is removed or disabled then the speed on voda 3G suddenly jumps to 12-14 Mbps. Not sure other SD chips are affected or not but at least snapdragon 410 is affected by this.

 
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