That is a classic “null IMEI” caused by corruption. The procedure above (combination firmware → Diag mode → UMT IMEI repair) will fix it.
If UMT is not available to you, there are other professional methods:
While UMT is a solid choice, other professional tools can also repair the J410F’s IMEI:
J410f Imei Repair Umt Extra Quality 【Android】
That is a classic “null IMEI” caused by corruption. The procedure above (combination firmware → Diag mode → UMT IMEI repair) will fix it.
If UMT is not available to you, there are other professional methods: j410f imei repair umt
While UMT is a solid choice, other professional tools can also repair the J410F’s IMEI: That is a classic “null IMEI” caused by corruption