Umi Plus LTE network problem.

DonaldsonAC

\n\nHello Umi Support,

I live near Prague in the Czech Republic and recently purchased the Umi Plus from Amazon.de, I was very happy with the device until I noticed a serious problem with the LTE signal. This device is 100% compatible with the LTE networks used here in CZ/DE/UK.

My previous phone was HTC One M7 and I had constant LTE/4G signal everywhere.

I noticed the Umi Plus display indicated E and randomly toggles between E and 4G, despite others on the same Vodafone CZ network having strong 4G connection.

The device is set to 4G Preferred but it still often connects to E.

I searched on the Umi Community page and found the code *#*#3646633#*#* to the secret menu and I checked that Bands 3, 7 and 20 were enabled.

I found that if I went to Network Selecting -> SIM1 and selected LTE Only rather than 4G/3G/2G (Auto) the display constantly showed 4G connection and the data connection was permanent and strong.

However, I then discovered that when LTE Only is selected I can not make or receive voice telephony calls, clearly as calls are not made over LTE.

To resolve that problem I set it 4G/3G/2G (Auto) again but that only caused the original problem to return.

Despite being in a location with strong 4G signal the Umi Plus constantly toggles between 2G and 4G making it useless and not fit for purpose.

Is this a known issue? Is there an update/solution to fix this issue?

I have informed Amazon.de and I have until 31/01/2017 to return the device for a full refund, I would like to keep the Umi Plus because apart from this issue I am really pleased with it, but I need to know if there is a solution to resolve this problem.

Thanks for your help, I await your response,

Andrew Donaldson.

DonaldsonAC

I was told to post a thread here and email Umi Support about this issue, that was 2 weeks ago... I come back expecting to find some advice or a response from Umi but there is NOTHING.

I have until January to return this phone to Amazon, unless I get a reply to this thread or email I will return it for a full refund and I will buy another well known brand. This is just unacceptable, I am most disappointed.

Andrew Donaldson.