# Mifi - erased NAND flash **URL:** \ **Category:** Router\ **Created:** [March 4, 2018, 12:41pm UTC](https://forum.gl-inet.com/t/mifi-erased-nand-flash/3038 "2018-03-04T12:41:10Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![fredaine](https://forum-assets.gl-inet.com/letter_avatar_proxy/v4/letter/f/bbe5ce/32.png) [@fredaine](https://forum.gl-inet.com/u/fredaine)\ **Post date:** [March 4, 2018, 12:41pm UTC](https://forum.gl-inet.com/t/mifi-erased-nand-flash/3038/1 "2018-03-04T12:41:10Z")
Hi all, I think I need your help… Having some troubles with one of my mifi v2.5 routers (reboot each time I start a 3G connection), I tried to reset it several times but it didn’t help. I updated it to openwrt-mifi-2.264.bin and it didn’t help. So I tried to see if it is not possible to do more using the Uboot cli. And I started an “ERASE ALL” of the Nand flash… (Yes without knowing exactly what I was doing ! I know… stupid…) Anyway, now the router didn’t start anymore. I don’t have any possibility to communicate, no reaction if I push the reset button, only the power led blinks when I power it up. What is your advice? What can I do to recover the Nand content? Thank you for your help. ---
**Author:** ![expresspotato](https://forum-assets.gl-inet.com/letter_avatar_proxy/v4/letter/e/e47774/32.png) [@expresspotato](https://forum.gl-inet.com/u/expresspotato)\ **Post date:** [March 8, 2018, 11:03pm UTC](https://forum.gl-inet.com/t/mifi-erased-nand-flash/3038/2 "2018-03-08T23:03:37Z")
Hold down the reset button while booting. It should blink the LED a few times. Use Ethernet and assign yourself 192.168.1.2, 255.255.255.0, gateway 192.168.1.1. See if you can ping 192.168.1.1.If so access it in your browser and upload the firmware. ---
**Author:** ![alzhao](https://forum-assets.gl-inet.com/letter_avatar_proxy/v4/letter/a/5f9b8f/32.png) [@alzhao](https://forum.gl-inet.com/u/alzhao)\ **Post date:** [March 9, 2018, 3:15pm UTC](https://forum.gl-inet.com/t/mifi-erased-nand-flash/3038/3 "2018-03-09T15:15:35Z")
> **[Overview - GL.iNet Docs](https://docs.gl-inet.com/en/3/)** > > Documentation for GL.iNet Productions Pls use uboot failsafe. MiFi doesn’t have Nand flash. How you “Erase all of the nand flash”? ---
**Author:** ![fredaine](https://forum-assets.gl-inet.com/letter_avatar_proxy/v4/letter/f/bbe5ce/32.png) [@fredaine](https://forum.gl-inet.com/u/fredaine)\ **Post date:** [March 11, 2018, 3:56pm UTC](https://forum.gl-inet.com/t/mifi-erased-nand-flash/3038/4 "2018-03-11T15:56:26Z")
Thank you expresspotato and alzhao, but unfortunately the router doesn’t respond to the failsafe procedure. When I start the router with or without holding the reset button (for 60 sec), nothing happens. Only the power led is blinking. All other leds stay off. Alzhao, I selected the entry “ERASE ALL” in the uboot menu (by pushing a keyboard key at a certain time) when I was connected on the uart port. If I remember well the option just above was an erase of the NAND with the possibility to select which addresses to erase. I don’t have any other MIFI on hand for the moment so I cannot re-enter the menu to verify. You mention that MIFI doesn’t have any NAND flash. But do you confirm that the entry in the uboot menu exists. If the entry exists, I hope it doesn’t erase something other… Anyway I think the router is dead; For info it is a Mifi 2.5 with Quectel UC20. Thank you. ---
**Author:** ![alzhao](https://forum-assets.gl-inet.com/letter_avatar_proxy/v4/letter/a/5f9b8f/32.png) [@alzhao](https://forum.gl-inet.com/u/alzhao)\ **Post date:** [March 12, 2018, 7:43am UTC](https://forum.gl-inet.com/t/mifi-erased-nand-flash/3038/5 "2018-03-12T07:43:04Z")
Can you give a screenshot of the uboot menu? The default uboot should not have a menu in fact. Are you using some other uboot? ---
**Author:** ![fredaine](https://forum-assets.gl-inet.com/letter_avatar_proxy/v4/letter/f/bbe5ce/32.png) [@fredaine](https://forum.gl-inet.com/u/fredaine)\ **Post date:** [March 12, 2018, 9:28am UTC](https://forum.gl-inet.com/t/mifi-erased-nand-flash/3038/6 "2018-03-12T09:28:33Z")
I didn’t change the original uboot or other things. The only update I did is the upgrade to openwrt-mifi-2.264.bin. I call it “uboot menu” maybe I have to call it “Uboot command list” sorry for that. I’m not familiar with such kind of manipulations and in addition I don’t remember well what was present on screen at this time. Using the uart connection when the router is booting, you have the possibility to push a key at a certain time to enter uboot. At this time you have a menu or at least a list of available command (maybe whith the help command). Anyway, I don’t have for the moment other mifi 2.5 on hand, so I cannot take any screenshot. As soon as I have one I will do it. Thank you for your support. ---
**Author:** ![bruce](https://forum-assets.gl-inet.com/user_avatar/forum.gl-inet.com/bruce/32/35649_2.png) [@bruce](https://forum.gl-inet.com/u/bruce)\ **Post date:** [October 29, 2025, 2:55am UTC](https://forum.gl-inet.com/t/mifi-erased-nand-flash/3038/7 "2025-10-29T02:55:57Z")