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22 Posts

02-14-2018

FR

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  • Message 1 of 17

Downgrade firmware Lenovo Tab 4 10 Plus

2018-02-14, 10:29 AM

Hi everyone,

 

I have a Lenovo Tab 4 10.1 Plus, recently it has been upgraded to firmware TB-X704F_S000053_180122_ROW.

 

The problem is that now it shows a lot of messages like Error DNS and cannot connect to internet, even if it is connected to a wifi that works with another device (smartphone). The only way to make it work the WiFi is switching off/switching on the WiFi on the Lenovo Tab.

 

With the old firmware I didn't had connection problems.

 

Any clue?

 

Tanks in advance.

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1 Posts

02-11-2018

DK

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Re: Downgrade firmware Lenovo Tab 4 10 Plus

2018-02-15, 8:37 AM
Sadly, I have the exact same problem:

after the upgrade to TB-X704F_S000053_180122_ROW, WiFi is very unstable; anything from 10 seconds to two minutes, before a small x appears on the WiFi-symbol. Turning WiFi off and on solves it, but only for a very short time.
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22 Posts

02-14-2018

FR

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  • Message 3 of 17

Re: Downgrade firmware Lenovo Tab 4 10 Plus

2018-02-15, 8:53 AM

Hi,

 

Yesterday I was in touch with the service tech and they told me to reset the device (losing all configuration and data), after that it seems a little bit more stable but sometimes it has troubles to connect to the wifi. I'm going to look a little bit more and if it's not fixed I will open a ticket.

 

Thanks

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22 Posts

02-14-2018

FR

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  • Message 4 of 17

Re: Downgrade firmware Lenovo Tab 4 10 Plus

2018-02-15, 19:15 PM
It's not working, tomorrow I'm going to ask how to downgrade.
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22 Posts

02-14-2018

FR

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  • Message 5 of 17

Re: Downgrade firmware Lenovo Tab 4 10 Plus

2018-02-16, 6:40 AM

Hi again,

 

I've found that the problem appears with the networks with frequency of 5GHz, when connected to a 2,4GHz I can browse internet without any problem but when I change to a 5GHz network the device is connected but it cannot browse internet, Google's Chrome says a DNS error but sites in my local network (192.168.1.x) cannot be accessed.

 

Regards.

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26 Posts

03-11-2014

US

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  • Message 6 of 17

Re: Downgrade firmware Lenovo Tab 4 10 Plus

2018-02-19, 19:33 PM
I have this same problem on my Tab 4 8 Plus.

Unfortunately I use Google WiFi and can not limit it to 2.4ghz, nor would I want to because every other device is working perfectly.

Is there a way to set the tablet itself only to connect to 2.4, or to downgrade as you said?
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1 Posts

02-24-2018

NL

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  • Message 7 of 17

Re: Downgrade firmware Lenovo Tab 4 10 Plus

2018-02-24, 22:14 PM

Same issues here after upgrade. Any sollutions? 

Using thema Tab4 8 plus 

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22 Posts

02-14-2018

FR

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  • Message 8 of 17

Re: Downgrade firmware Lenovo Tab 4 10 Plus

2018-02-25, 7:37 AM
No, I've written a message to tech support but not answer.
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3 Posts

03-10-2018

AE

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  • Message 9 of 17

Re: Downgrade firmware Lenovo Tab 4 10 Plus

2018-03-10, 4:47 AM

Same Issue happen with me  With Tab 4 8" 

 after updating to version TB-8504x_S000049_180205_ROW 

the First Sim Card Slot is working on data only if any call mobile not reachable or closed even data is working properly  but i can make calls not reciving 

the second slot is working ok outgoing and reciving calls also data 

 

need to downgrade or fix that issue by upgrade 

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9 Posts

04-27-2018

DE

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  • Message 10 of 17

Re: Downgrade firmware Lenovo Tab 4 10 Plus

2018-04-27, 19:00 PM

I have the same problem with my tab 4 10 plus, any solution?

 

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