See Appendix B for an example that uses MobaXterm to connect to the serial port.Īs soon as the AP starts powering up, enter the ESC key repetitively in the terminal window, until you see the u-boot prompt. The serial port can be configured for 9600 bps, 8 databits, 1 stopbit, no parity, no flow control.

Connect a serial cable to the AP's console port (this has a pale blue label that is not labeled '2.5G').See Appendix A for an example of how to set up the Tftpd64 server in Windows. Set up a TFTP server in a network that is cabled to the AP's LAN port (labeled '2.5G'). Note: These images are only to be used to recover an unbootable AP. Download the Catalyst 9115AX/9120AX Access Point Manufacture Image bundle-axel-SS-8_10_130_0.img.Use u-boot mode to copy the image into the AP via TFTP.ĭetailed Steps Download Special Image Bundle-Axel-SS-8_10_130.0.img.Download the special image bundle-axel-SS-8_10_130_0.img.This issue is documented as Field Notice: FN - 72278 - Some C9120 and C9115 APs Might Get Stuck in Bootup with 'Uncorrectable ECC Error' Displayed - Workaround Provided and as the Cisco bug ID CSCwa12652. To recover them, you must console into each AP, and load in a special image via TFTP. These units log 'uncorrectable ECC error' messages to the console during bootup, and are unable to boot successfully. 27, 2021, Cisco manufactured a number of C9115 and C9120 access points with a bad image. The only limit is us and we put up with way more than we have to from these people.This document describes the recovery procedure of Catalyst 9115/91120 access points that boot in the U-boot prompt instead of normal operating system. As long as their customers don't wise up to and and demand more they will keep seeing how far they can take things. They are playing the game as cutthroat as they can without grabbing you and forcing you to buy their stuff. There is a better way, they just don't give it to you because that would mean lost revenue. If Apple had just one competitor that made phones slightly different to make things easier on the consumer, lots of people would jump ship. Repairing iPhones is literally part of the iPhone profit scheme along with getting you invested in their app store, signed up to their services, not using cases that totally protect the phone and so on. Instead they use glue to put it together and create a convoluted system of repair to keep all that repair/replacement money to themselves.

A few lines in the middle of their phones, a few visible screws and you you know what? Opening an iPhone and replacing parts wouldnt be so difficult.

For iphone instal Disassembly free