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Forum Discussion
AirCard 770s no battery error
Intermittently my AirCard 770s displays a no battery error. Removing the battery resets the AirCard and the AirCard works ok for 15 minutes then displays the no battery error again. The battery is fully charged. Is the battery the problem or is the AirCard causing this?
61 Replies
Having the same problem here, device lasted a little over one year. I think if enough people are having this issue, then netgear needs to do something about it. Shouldn't have to purchase a new device.
Well! After calls to at&t, Sierra, and Netgear, I am told I need to purchase a new battery because they only last about a year and the old one could be causing all the no battery and connection problems - which still sometimes says battery is at 100%. New batteries can be found on Amazon for $10 which is reasonable if the battery is the problem. Yes, sometimes it works with the battery removed, but not other sessions.
I agree it's curious so many are having the same issues. I would not have found out except Netgear insisted on my registering. Sierra sold to Netgear so batteries are labelled either way.
I have been connected almost 20", but earlier it was just about 3". My partner is tech challenged so we both are not happy.
That's sort of good news, I can live with $10 a year for a new battery. I'm curious to see whether or not this solves the problem once and for all.
I tried a new battery - worked for a day and right back to no bat error. Went back to ATT and got sold a cheaper model of the same- Battery not so good but the one I bought works well in it. We should get an extended warrenty for the piece of junk.
I used the 770s without the battery as someone suggested, but eventually that was sketchy and needed to be re-started all the time.
Went on Amazon and found the Sierra Wireless W-5 Replacement Battery with the same specs as my original battery (under $10 now).
Worked fine for one day, now back to the same No Battery and Critical low-power errors.
Build date on my unit was 9/30/2014 and it started in with the errors exactly a year later. Very frustrating.
See my (GlenRoberts) message posted 11/20/2015.
Great advice thank you.
I did a factory re-set and may have solved the problem that way, we'll see if the errors pop up again. If so I'll remove the battery and SIM card as you suggested. Glad you are up and running again.
I went to ATT late Sept. and they sold me a cheaper Netgeat model - looks the same but does not have options on the device - you have to sign in ti att-wifi to set up and change settings. Worked fine for a month - not it powers done every 10 min. getting a warrenty one in a few days but after two that failed I don't have confidence ? anyone have a better product ?
No need to buy anything new. I had the same problem (no battery & critical low battery messages) and tried everything everyone else had tried to no avail. Then I tried something I had done with a different device out of desperation a few years ago. Remove both the battery and the SIM card. Leave them out for about 10 minutes. Then reinsert the SIM card and then reinstall the battery. PROBLEM SOLVED!!!
- Thank you! This will hopefully work. I am theorizing that it will even though I’m in the five-minute of the 10 minute period of your suggestion because I had an AT&T hotspot and a boost mobile hotspot that were the exact same model and are doing the exact same thing and both of them have been powered off for about a year hoping this helps, and thank you for all of your feedback I don’t know if anyone even checked this for him anymore but wanted to add the fact that similar or exact model two different carriers, same problem :-) it was a planned self-destruct for obsolescence LOL
- THANK YOU GlenRoberts
- I tried removing the sim, battery and factory reset...nothing worked. Also I tried using it without a battery installed but it would not start... I will probably buy a new one on Amazon then look for another solution when my ATT contract is finished. Unfortunately we do not have DSL available in our rural location.
After going through two replacement batteries, two factory re-sets, removing the SIM card and battery the unit is now showing the No Battery error again. Each time, the battery has to be removed and replaced. Nothing has worked for more than a day or two. No one at ATT or NetGear has been able to fix it. They want us to buy another unit - no chance! With a year left on our contract all I can do is put up with it and not renew the contract. I'll never buy another NetGear product either. After seeing all the complaints here with the same exact problems I have no doubts that ATT knows about whatever this defect is but is still selling the units. Shameful. I'm done with this shoddy POS.
- I am on my 4th ATT Netgear hotspot in 3 years. Latest one only lasted 9 months. Same error message No Battery. Batteries are Not the problem. They must be just poor quality. It's great when it works but I use it for business and I need reliability.
Just began experiencing the same issue on my Sprint NETGEAR AirCard 771S
I work in tech support for an unrelated business. I have read through this message board, and all the workarounds everyone has tried, and seeing how wide spread the issue is.
Problem
NETGEAR AirCard 771S reports "No Battery" and will not function
Model
NETGEAR AirCard 771S
Analysis:
1. How likely is it that so many batteries are going bad within such a short time frame? No very!
2. New battery... still issues
3. Factory reset... still issues
4. Reseat SIM card... still issues
Questions:
1. Has anyone checked the firmware version?
I believe that,perhaps, NETGEAR released a firmware upgrade that has a defect that is triggering the "No Battery" error on these devices. Since the firmware is automatically updated upon connection to the internet, and consumers are unable to block firmware upgrades (to the best of my knowledge), it points to the most likely reason for these issues.
If we all can share the firmware version of our problematic devices, we may be able to identify the faulty firmware versions. Then NETGEAR can, perhaps, release a new firmware version with a fix.
Model: AirCard 771S
Firmware Version: NTG9X15C_45.04.12.05
Firmware Build Date: 01/19/14
Interesting theory, but not sure that's the problem. firmware versions both before and after factory reset are unfortunately the same for 770S:
Version NTG9X15C_01.18.02.00
Build date 09/30/14
side note, i have several of these for different devices located in different places and am now having the same issues with all of them.
We have three of these devices. I did an update on two of them to the Firmware NTG9X15C_01.18.02.00 - Build date 09/30/14. The two devices started acting up and providing the no battery error message shortly therafter. The device that didn't fail is working fine.
I have suspected the firmware update but after reading these posts Iconvinced the batteries are not at fault and it's all firmware.
Same Problem. Have had unit working well for over a year....Just started the No Battery issue and locking up about a week ago (Early April 2016). Found this thread and thought I would add my 2 cents for what it is worth as I have not seen a solution anywhere. All suggestions in this thread have not worked for me. Thanks to anyone who can provide a solution. Else will be getting something else as we are full time RV'ers and this hotspot is our only lifeline to the internet, banking, and so much more. At this point.... next one will not be a Netgear.
Firmware Version NTG9X15C_45.04.12.05
Firmware Build Date 01/19/14
Web App Version AC771S_03.02.54.01
Bootloader Version NTG9X15C_45.04.12.05
I am having the same problems as everyone above. In my opinion, ATT has sold us a product that only has a life of one year (give or take a few months). Then they force customers to sign up for a two year contract, knowing in many cases, the product will not sustain the warranty period. Therefore, ATT must either release it’s customers from their contract or replace the products at no cost. It would be illegal for ATT to charge customers for a product that should survive the warranty period.
