zte z851m(cricket) after unlock by code successful,no network - GSM-Forum

mohammadlhloh · 10-09-2018, 17:26

zte z851m(cricket) after unlock by code successful,no network on phone
changed another sim and chandged network type still same
any solution?

JOTECH · 01-03-2019, 17:40

Please bro, how do you solve the problem cos i also have one zte z851m after input the unlock code that was purchased online it was unlocked successfully, but no network bar. Please any valid solution?

**Brka** · 01-03-2019, 23:24

Simple answer :
Phone is unlocked official way, so nothing wrong with it.
Problem is in unsupported network bands. US Cellular bands are different than rest of the world.

From manufacturer's site / ZTE USA Support page :

Quote:

Supported Frequencies: (4G) LTE Bands 2, 4, 5, 12 ; (3G) UMTS/HSPA/HSPA+ Bands 2, 4, 5 ; (2G) GSM/GPRS/EDGE Bands 2, 5

https://en.wikipedia.org/wiki/GSM_frequency_bands
https://en.wikipedia.org/wiki/UMTS_frequency_bands
https://en.wikipedia.org/wiki/LTE_frequency_bands

However, there are chances that with some other operator it would work.

Other possible solution: Unlock bands on QUALCOMM devices

If you got success - please post here exact procedure, may be helpful to others.

b.r.
Alex

khaelneythan · 09-05-2019, 07:33

up this problem same unit and sam problem here

realdbeat · 09-07-2023, 11:59

i have same issue anybody solve it?

10-09-2018, 17:26	#1 (permalink)
mohammadlhloh Registered User Join Date: Sep 2016 Location: Jorda, Amman. Posts: 12 Member: 2626819 Status: Offline Sonork: 100.1685736 Thanks Meter: 25	zte z851m(cricket) after unlock by code successful,no network zte z851m(cricket) after unlock by code successful,no network on phone changed another sim and chandged network type still same any solution?

01-03-2019, 17:40	#2 (permalink)
JOTECH Freak Poster Join Date: Oct 2006 Location: SOUTH AFRICA Posts: 156 Member: 366884 Status: Offline Thanks Meter: 12	Zte z851m no network signal after unlock Please bro, how do you solve the problem cos i also have one zte z851m after input the unlock code that was purchased online it was unlocked successfully, but no network bar. Please any valid solution?

09-05-2019, 07:33	#4 (permalink)
khaelneythan Freak Poster Join Date: Jan 2011 Location: philipines Age: 43 Posts: 176 Member: 1490299 Status: Offline Thanks Meter: 20	up this problem same unit and sam problem here

09-07-2023, 11:59	#5 (permalink)
realdbeat Junior Member Join Date: Oct 2021 Location: badagry Age: 26 Posts: 12 Member: 2997924 Status: Offline Sonork: realdbeat Thanks Meter: 0	i have same issue anybody solve it?