This project is for a data network and kernel expert.
I need to add all USA frequency 4g LTE bands to this phone QIN 1s+ so that it works in the USA... It has spreadtrum A53 chip
I have the phone with me and :
1. AT&T doesn’t recognize it as a 4g phone (but phone calls and text messages works only on HSPA+)
2. T-Mobile recognizes 4g internet but not 4g phone calls
This is the phone
[https://www.banggood.com/QIN-1S+-VoLTE-4G-Network-Wifi-4G+[login to view URL]]
13 freelancers are bidding on average $554 for this job
Hello, As I take this project, I will do my best! I can support on your project perfectly. Please send me your message and let's discuss more detail. Thanks.