Unlock s337tl u4 bit4 7.0 free without credit

Unlock j3 luna pro sm-s337tl u4

How to unlock j3 luna pro tracfone sm-s337tl 7.0 u4 bit4 free without credit without any box.

steps ti unlock network j3 luna pro s337tl amdroid 7.0 binary 4 free without credit no need z3x box or octoplus samsung box:

1- Download needed file from links in down, you need to "combination - imei gurus tool - stock rom 4 files" links in down.

2- Flash combination firmware then wait to boot.

3- enable diag : Dial code "*#0808# " and choose diag " DM+MODEM+ADB"

Launch imei gurus services tool "run it as administration".

4- from tool panel go to "samsung > exynos.

5- Select port then press "new exy unlock"

Waiting to complete unlock then flash full firmware 4 files.

Now unlock done you can use any sim card.

Notes:

1- For flash combination and firmware plz use odin v3.14.1 patched.

Download odin 3.14.1 patched.

2- To make unlock without any errors plz run imei gurus tool as administration.