Download Android 4.4.2 stock firmware for Ulefone U58 Smartphone (alias E-ceros One) from here, here or from here.
Archive name: U58-20140604_e2719v92_gq3016.zip
Archive file size: 419 MB
Support: Mediatek MT6592
Project: e2719v92_gq3016
Config_version: V1.1.2
MT6592_S00_MOLY_WR8_W1315_MD_WG_MP_V35_P2_1_wg_n
Upgrading notes
1 – Download & unpack FlashTools. Run Flash_tool.exe
2 – Unpack Rom in folder
3 – Select MT6582_Android_scatter.txt in folder on rom. And wait.
4 – Check Option->USB Model, click USB Model
Choose Option->DA DownLoad All->Speed->High Speed, click High Speed
5 – Turn off your phone, remove the battery.
6 -"Press F9 (or hit Download button)"
7 – Connect your phone into the computer with USB data cable.
8 – The process will start and a red progress bar will appear after color purple, yellow.
9 – And green circles display.
10 – Boot your phone !
11 – Restart !
12 – Enjoy !
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