@Marathon2422 I have looked at xxx.skyneel.com and found on it two methods to restore the IMEI on a phone, but none of these works on mine : 1- by installing MobileUncle apps, but its is an android apps so I cant install it on an ubuntu touch phone. 2- by entering the engineering mode by tapping code * # * # 3646633 # * # * or *#4634#, but in my case nothing happens So what could I try now ? should I install an Android system on my aquaris E5 HD and then install MobileUncle apps ? but how to do it ? Fred

@fred56 While inserting my SIM card into my Aquaris E5 under UBports, I have a problem: I can not run my cell. He tells me that my SIM card is not registered. He accepted my PIN. When I go to "Cellular Parameters / Operator & APN / Operator", the operator search is automatically performed, mine is found (Free) but it refuses me to select it. When I return to "Carrier & APN", the entry "Carrier" remains at "None" I had no such problem with my latest Canonical Ubuntu Touch, so I do not think it comes from my phone, my SIM card or the E5. What can I do ? is there a configuration file to edit? Fred