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Old 12-17-2013, 10:14   #1 (permalink)
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Acer Liquid Z2 Z120 IMEI invalid and no netword


I have 2 pcs of Acer Z2 Z120 single sim with the message invalid IMEI. I fixed the IMEI using SigmaKey, but the phones do not detect the sim card and no network. I flashed using official firmware still same error.

Any way to fix this?

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Old 01-18-2014, 15:12   #2 (permalink)
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Have you got any news regarding the Z120? I have a single sim, z120 with the invalid imei as well. I have repaired the imei which has done absolutely nothing as far as I can tell, but the problem is the simlock. My box says it cannot find it, and I didn't backup the nvram before hitting the direct unlock button and causing this problem. p.s. NCKbox is the one I have, and I used the new 1.7 android module. Btw, when the imei is read, the last number that appears (5) is missing.
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Old 02-16-2014, 20:56   #3 (permalink)
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hi, my acer z120 single sim imei invalid was solved by update official firmware from sdcard
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Old 03-31-2014, 10:19   #4 (permalink)
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hello,how did you solved this problem because i faced same problem,thanks
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Old 04-12-2014, 16:23   #5 (permalink)
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Originally Posted by jon123 View Post
hi, my acer z120 single sim imei invalid was solved by update official firmware from sdcard
pls share the file link acer z2 duo
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Old 11-06-2014, 13:13   #6 (permalink)
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for Z120 single sim
Step 1
dual sim flash firmware ( put sim card and has signal, two signals appear only one good and one bad
Step 2
Single sim flash firmware (Acer_Z120_Stock_ROM_v1.006.00.WW.GEN1S_A41J_A_Sing and has signal and works perfectly

is in recovery mode flash with sdcard (sdcard update)

Last edited by rickyalex; 11-06-2014 at 13:22.
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Old 11-07-2014, 11:35   #7 (permalink)
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1- Download this tool: Acer A1 DL TOOL
2- Extract the zip file into Desktop
3- Move the .bin file in the ACER_A1_Bin subfolder placed into A1_DL_Tool_[Intra][Single]_v3.100_20091027 folder
4- Connect your phone (it must be turned ON) to your PC
5- Run the “ACER Download Tool [Single] executable (If you're using Vista/7 you must run it in compatibility mode,with administrator privileges)
6- Click the BROWSE button and search for the .bin file you previously put into ACER_A1_Bin folder
7- Click START, and remember, DO NOT stop the flashing process, DO NOT unplug your device, or you'll have a very expensive and NOT WORKING piece of plastic and steel on your desk
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