1. Ericsson-LG Enterprise Proprietary | 2013-11-11 | Page 1 Slide title 30 pt Text and bullet level 1 minimum 24 pt Bullets level 2-5 minimum 20 pt Do not add objects or text in the footer area iPECS eMG80 Recovery (KSU, VVMU, WTIB) April 29 th, 2014 Ericsson-LG Enterprise

2. Ericsson-LG Enterprise Proprietary | 2013-11-11 | Page 2 Slide title 30 pt Text and bullet level 1 minimum 24 pt Bullets level 2-5 minimum 20 pt Do not add objects or text in the footer area KSU/VVMU Recovery can be performed when the boot image is operating normally. If the boot image is broken by any chance, KSU/VVMU Recovery is not available. In that case, ROM writer equipment is needed. Recovery files for eMG80 KSU/VVMU note 1: Recovery Kernel and DSP images by two individual process. note 2: Recovery Kernel and DSP images by one package image.  You can select an upgrade process between Note1 and Note2. note 3: This is an optional process when MOH/PPT files are crashed. KSU/VVMU Recovery Overview StepFile TypeMBUVVMUBoot VariablesBoot CLICf. 1Boot Imageu-boot-mbu.binu-boot-vvmuu.binbootnamerun updateboot 2-1Kernel ImageuImage-mbuuImage-vvmukernelnamerun updatekernelnote 1 2-2DSP Imagemsp.axf mspnamerun updatemspnote 1 2Boot File Systemfs-bootfs-mbu.yaffs2fs-bootfs-vvmu.yaffs2bootfsfilerun updatebootfsnote 2 3Root File Systemfs-emg80-mbu.yaffs2fs-emg80-vvmu.yaffs2fsfilerun updatefs 4 Prompt/MOH File System fs-moh-ppt_STG.yaffs2 pptfsfilerun updatepptfsnote 3

3. Ericsson-LG Enterprise Proprietary | 2013-11-11 | Page 3 Slide title 30 pt Text and bullet level 1 minimum 24 pt Bullets level 2-5 minimum 20 pt Do not add objects or text in the footer area 1.Install TFTP Server program on your PC and run tftpd32 program (TFTP server program can be downloaded from http://tftpd32.jounin.net/)http://tftpd32.jounin.net/ 2.Set TFTP Server Directory using the browse button (ex: C:\tftp_server) 3.Copy recovery files (u-boot-xxx.bin/fs-emg80-xxx.yaffs2) to the directory 4.Copy recovery file of Boot File System (uImage-xxx/msp.axf) to the directory (Note1) Or 5.Copy recovery file of Boot File System (fs-bootfs-xxx.yaffs2) to the directory (Note2) KSU/VVMU Recovery TFTP Server Program

4. Ericsson-LG Enterprise Proprietary | 2013-11-11 | Page 4 Slide title 30 pt Text and bullet level 1 minimum 24 pt Bullets level 2-5 minimum 20 pt Do not add objects or text in the footer area 1.Connect your PC to eMG80 KSU through Serial Port 2.Turn eMG80 system on and press [Ctrl+C] as quick as to log in boot mode. The boot mode prompt: * MBU: ‘eMG80-MBU>’ * VVMU: ‘eMG80-VVMU>’ Note) We assume that all recovery processes are done at MBU board in this document. So you can change the file names for VVMU’s when you want to recover VVMU board. KSU/VVMU Recovery KSU/VVMU Recovery Procedure

5. Ericsson-LG Enterprise Proprietary | 2013-11-11 | Page 5 Slide title 30 pt Text and bullet level 1 minimum 24 pt Bullets level 2-5 minimum 20 pt Do not add objects or text in the footer area KSU/VVMU Recovery KSU/VVMU Recovery Procedure 3.To check the current system’s boot environment, run CLI ‘printenv’.

6. Ericsson-LG Enterprise Proprietary | 2013-11-11 | Page 6 Slide title 30 pt Text and bullet level 1 minimum 24 pt Bullets level 2-5 minimum 20 pt Do not add objects or text in the footer area KSU/VVMU Recovery KSU/VVMU Recovery Procedure 4.Set IP of TFTP server by ‘setenv serverip’ and ‘saveenv’ command. (We assume that eMG80 has 150.150.150.61 and PC has 150.150.150.13) 5.Verify Recovery files’ name by ‘printenv’ command and set name if they are different with you have. (Note1) 5-1 Set Boot File System name if you want to recover the boot files by one package. (Note2) Note) Run CLI ‘saveenv’ if you changed one of recovery file name.

7. Ericsson-LG Enterprise Proprietary | 2013-11-11 | Page 7 Slide title 30 pt Text and bullet level 1 minimum 24 pt Bullets level 2-5 minimum 20 pt Do not add objects or text in the footer area KSU/VVMU Recovery KSU/VVMU Recovery Procedure 6.Update Boot Image using ‘run updateboot’ command Note) This is not necessary if Boot image is not changed. And you should reset your system after updating Boot image.

8. Ericsson-LG Enterprise Proprietary | 2013-11-11 | Page 8 Slide title 30 pt Text and bullet level 1 minimum 24 pt Bullets level 2-5 minimum 20 pt Do not add objects or text in the footer area KSU/VVMU Recovery KSU/VVMU Recovery Procedure 7-1. Update MSP Image using ‘run updatemsp’ command (Note1) Update Kernel Image using ‘run updatekernel’ command (Note1)

9. Ericsson-LG Enterprise Proprietary | 2013-11-11 | Page 9 Slide title 30 pt Text and bullet level 1 minimum 24 pt Bullets level 2-5 minimum 20 pt Do not add objects or text in the footer area KSU/VVMU Recovery KSU/VVMU Recovery Procedure 7-2. Update Boot File System Image using ‘run updatebootfs’ command (Note2)

10. Ericsson-LG Enterprise Proprietary | 2013-11-11 | Page 10 Slide title 30 pt Text and bullet level 1 minimum 24 pt Bullets level 2-5 minimum 20 pt Do not add objects or text in the footer area KSU/VVMU Recovery KSU/VVMU Recovery Procedure 8.Update Root File System Image using ‘run updatefs’ command 9.Restart the system when Root File System file is programmed completely

11. Ericsson-LG Enterprise Proprietary | 2013-11-11 | Page 11 Slide title 30 pt Text and bullet level 1 minimum 24 pt Bullets level 2-5 minimum 20 pt Do not add objects or text in the footer area WTIB Recovery WTIB Recovery Procedure CN2 CN1 SW1 Figure 1 Board Layout of eMG80 WTIB4

12. Ericsson-LG Enterprise Proprietary | 2013-11-11 | Page 12 Slide title 30 pt Text and bullet level 1 minimum 24 pt Bullets level 2-5 minimum 20 pt Do not add objects or text in the footer area WTIB Recovery WTIB Recovery Procedure -. Search for the CN2 connector. -. Connect two pins of the CN2 on the WTIB4 PCB with a short cap or a jumper wire. -. Connect serial cable with GDC-TRC1 between CN1 on WTIB and PC and then, Power on. -. Check if the serial display is normal. 1. If serial display is OK, the factory image is working. 2. If not OK, you must check if U-boot is normal. A.If U-boot is OK, you can process below. B.If not Ok, “U-boot recovery” process must be done before below process. At that time, a special tool like “USB-Blaster” and related files are needed. (The factory image is temporary, so you have to upgrade again the latest version)

13. Ericsson-LG Enterprise Proprietary | 2013-11-11 | Page 13 Slide title 30 pt Text and bullet level 1 minimum 24 pt Bullets level 2-5 minimum 20 pt Do not add objects or text in the footer area WTIB Recovery WTIB Recovery Procedure -. Serial Tool Configuration Emulator: Tera Term(Recommended), Hyper terminal, or any tools supporting X-modem. Serial Port Setup: -. Right after pushing and releasing SW1 on WTIB4, Hit to enter U-boot mode with “WTIB#” prompt. -. Check the U-Boot version using “ver” command. Maybe 1.1.6 or later. Hit the “CTRL+c” at this point u-boot version check

14. Ericsson-LG Enterprise Proprietary | 2013-11-11 | Page 14 Slide title 30 pt Text and bullet level 1 minimum 24 pt Bullets level 2-5 minimum 20 pt Do not add objects or text in the footer area WTIB Recovery WTIB Recovery Procedure -. Input “run cupgrade” at WTIB# prompt for uploading WTIB image. Ex) GS86U10Af.rom -. Send the WTIB image. Refer to below sequences. File->Transfer->XMODEM->Send->Option 1K click->select the “GS86Uxxxx.rom” Don’t select any other file. If so, please click “cancel” button and press “CTRL+c” repeatedly until WTIBE# prompt display. And then, start again from the command After the upgrade is complete, WTIB automatically restarts

15. Ericsson-LG Enterprise Proprietary | 2013-11-11 | Page 15 Slide title 30 pt Text and bullet level 1 minimum 24 pt Bullets level 2-5 minimum 20 pt Do not add objects or text in the footer area WTIB Recovery “run cupgrade” progress and result Automatically Reset Rebooted automatically WTIB Recovery Procedure “run cupgrade” progress and result Rebooted automatically

16. Ericsson-LG Enterprise Proprietary | 2013-11-11 | Page 16 Slide title 30 pt Text and bullet level 1 minimum 24 pt Bullets level 2-5 minimum 20 pt Do not add objects or text in the footer area WTIB Recovery WTIB Recovery Procedure -. Wait until the TMR LED(LD2) on WTIB4 blinks. -. Power off and Remove the Short cap or jumper wire from CN2. -. Power on and wait until the TMR LED(LD2) blinks. -. Check whether the upgraded version is correct.

17. Ericsson-LG Confidential | 2013-07-9 | Page 17 Slide title 30 pt Text and bullet level 1 minimum 24 pt Bullets level 2-5 minimum 20 pt Do not add objects or text in the footer area