Introduction

This document is intended to assist installers and agents in remotely managing device upgrades and providing guidance on SOLAXCLOUD.

Please note the validity period of this document. As product demand increases, SOLAXCLOUD will progressively introduce new features while removing or adding historical devices or functionalities. This document (V1.1) is based on the SOLAXCLOUD V7 update and will undergo continuous revisions. Should you identify any issues with this document, please promptly email info@solaxpower.com . We sincerely appreciate your assistance and cooperation.

Notice:Only Agent account or Installer account could manage the upgrade. For End User account,please contact with upper agent or installer.

How to get the permission to manage upgrade?

We now offer 2 methods to get the permission:

Please sign the document 《SolaX Cloud Remote Upgrade Declaration》which you could get it by emailing SOLAX info@solaxpower.com

Join the SOLAX Installer Partner Program and upgrade to the GOLD Installer. Solax Super Administrator will send message to GOLD Installer whether to activate the Upgrade Permission.

Please check the modules within the table can be updated remotely.

For specific upgradeable modules, please refer to SolaxCloud.

Inverters Devices Upgrade Access Path (Single Device Example: Inverter)

WEB Interface

Step 1: Please click the “Firmware” Button

Step 2:Please click the “Upgrade” to manage Upgrade

Step 3:Please check the “Residential” or “C&I” section to operate the device need to be upgraded.“Residential” section includes Inverter/EV charger/Gateway/ Adapter box /Battery/RSD/ECC/Meter/Heat Pump

Step 4:Please enter the serials number of the device,and click the “Search” button

Step 5:Click the “Upgrade” button to select the target software version. Please check the Online Status,If the device is off-line,It can not be upgrade remotely.

Step 6:Click the device classification to select the target device upgrade module includes Inverter ARM/Communication Module/Inverter DSP/Inverter deputy dsp/Inverter all/BI/BKP-SW

Step 7:Choose the correct IC number to upgrade the target device module(See as screenshot 4).Usually there will be only one selection displayed if the upgrade available.If tow or more selection displayed,which means it matches different inverter type.Please contact technology-team to get the correct version.If nothing displayed and “No updatable IC” appears, which means the device is already the latest version or the current module you select is not available for upgrading.

Step 8:Please click “Confirm” button and wait for some minutes.There will be a note “Updating,Please wait patiently for the update to compete”displayed,shown as screenshot 5 below.The process will be displayed digitally along with the upgrade,shown as screenshot 6 below.Upgrade process finished with the display of “Upgrade completed”,shown as screenshot 7 below.

Step 9:Please upgrade the communication module and DSP module later. Please ensure you have a sufficient DC power supply.For On-Grid inverter,please ensure PV voltage is higher than the minimum operating voltage of the inverter. Alternatively, when using an energy storage inverter, it is sufficient to have a single sufficient DC source from either the PV system or the battery.

The above steps detail how to upgrade the inverter module.However,For a residential home storage system, customers may still need to upgrade other devices such as batteries, EVC, and data hubs,etc.

For better user experience,Battery upgrade also support to be upgraded in inverter page.

Battery Devices Upgrade Access Path

Step1: Check the SN of all batteries to know the battery combination, and refer to previous text to determine how to upgrade the batteries.

Step2: The interface for Battery upgrades is displayed as follows: Firmware-- Upgrade-- Residential/C&I-- battery

Step3: Upgrade master battery first (Notice：If users installed a BMS Para box then Battery M means BMS Para box).

Step4: Then upgrade slave batteries.

Recommended devices upgrade sequence

1,Inverter

2,Battery

3,EV charger

4,Adapter box

5,RSD

For some SolaX products, only one module needs to be upgraded, or upgrades are not supported,includes some types of On-grid inverter(MEGE,FORTH,etc.)

Troubleshooting

1,Issue before upgrading

The above list only covers some of the issues. If you encounter any other problems not addressed in this document, please contact SOLAX Support as soon as possible.

2,Issue when upgrading

The above list only covers some of the issues. If you encounter any other problems not addressed in this document, please contact SOLAX Support as soon as possible.

3,Issue after upgrading

The above list only covers some of the issues. If you encounter any other problems not addressed in this document, please contact SOLAX Support as soon as possible.

Appendix

Applicable model

The inverters with models below cannot be upgraded remotely, it’s important:

1. Upgrade steps for specific model

1.1 X3-Mic

SN starts with MC/MCU/MU/ MC2. When you upgrade ARM and DSP, you only have one file to choose from.

1.2 X3-MIC PRO G1

If the SN starts with: MP, please refer to X3-MIC for the upgrade procedure.

If the SN starts with: PU, then the first file should be selected when upgrading the DSP file for the machine . Other steps can also refer to X3-Mic.

1.3 X3-Pro G2

If the SN starts with: MPT, please refer to X3-MIC for the upgrade procedure.

1.4 X3-Hybrid

For X3-Hybrid-G1.0, SN starts with H3P/H3L/H3E/H3C, you should choose the first file

when you upgrade the ARM and DSP.

For X3-Hybrid-G2.0&G2.1, SN starts with： H3DE/H3UE, you should choose the second file when you upgrade the DSP.

For X3 - Hybrid - G4, SN starts with： H34M/H34D/H34T/H34B/H34A/H34C. Please refer to the upgrade procedure for X3-MIC.

However, it should be noted that if the ARM version is lower than 1.03 or the DSP version is lower than 1.02 or both versions are too low, please upgrade the transition firmware first and then upgrade to the latest. (You can contact us to upgrade the transition firmware for you.)

1.5 X1-Hybrid

For X1 - Hybrid – G3, SN starts with：H1C/H1E/H1I/ HCC/HCE/HCI/HUC/HUE/HUI Please refer to the upgrade procedure for X3-MIC.

For X1 - Hybrid – G4, SN starts with：H4XXXD/ H4XXXM/ H4XXXT/ H4XXXB/ H4XXXA/ H4XXXC Select the second file when upgrading ARM. For others, please refer to the upgrade steps of X3-MIC.

However, it should be noted that if the ARM version is lower than 1.10 or the DSP version is lower than 1.11 or both versions are too low, please upgrade the transition firmware first （ARM1.10,DSP1.11） and then upgrade to the latest.

1.6 X1-Boost & X1-Mini

For X1-Boost-G3.1/G3.15/G3.2/G3.3, SN starts with XBU/XB31/XB32/XB33, and also for X1- Mini-G2.1/G2.15/G3.0/G3.1, SN starts with XMU/XM2**2/XM3/XM3A, you should choose the second file when you upgrade the DSP. For others, please refer to the upgrade steps of X3-MIC.

For X1-Boost-G3.0, SN starts with XBE, and also for X1-Mini-G2.0, SN starts with XMT, you should choose the First file when you upgrade the DSP. For others, please refer to the upgrade steps of X3-MIC.

1.7 X3-Fit

For X3-Fit-G1, SN starts with F3E, you should choose the first file when upgrading the ARM and DSP, just refer to X3-Hybrid-G1;But if the ARM and DSP version starts with 5. **, they cannot be upgraded remotely.

For X3-Fit-G2, SN starts with F3DE, the ARM and DSP version start with 5.**, they cannot be upgraded remotely.

1.8 X3-Forth & X3-Mega-G2

For X3-Forth inverters, SN starts with X3F & For X3-Mega-G2, SN starts with X3G, you need only to choose “Inverter Overall” to upgrade.

1.9 X1-Air

For X1-Air-G2, SN starts with XAT/XAU/XA2, when upgrading the DSP file, note that some parts need to be upgraded to V1.29 and the other part needs to be upgraded to V2.31.

This depends on the original version of the machine's firmware. If the original version is V1. XX, upgrade to V1.29. If the original version is V2. XX, upgrade it to V2.3

Mixed steps for batteries

Discriminating battery

2.1 T58 V1 & V2 & BMS Parallel BOX II

T58 V1: The fifth part of the main control SN is A. The fifth position from SN is B.

T58 V2: The fifth digit of the SN is E. The fifth position from SN is F

BMS Parallel BOX II: The fifth place of SN is usually C.

BMS Parallel BOX II G1, whose Battery model on solax cloud is T58-P1, can only be connected with T58 V1 slaves;

BMS Parallel BOX II G2, whose Battery model on solax cloud is TP203 can be connected with T58 V1 slaves or T58 V2 slaves or mixed.

2.2 Battery combination upgrade analysis

a.T58 MASTER V1

T58 MASTER V1+all T58 SLAVE V1: no issue

T58 MASTER V1+all T58 SLAVE V2: unable upgrade T58 SLAVE V2

T58 MASTER V1+T58 SLAVE V1 and T58 SLAVE V2(mixed): unable upgrade T58 SLAVE V2, T58 SLAVE V1 can be upgraded

b.T58 MASTER V1.1

T58 MASTER V1.1+all T58 SLAVE V1: no issue

T58 MASTER V1.1+all T58 SLAVE V2: unable to upgrade V2 slaves unless the version of V2 slaves is 2.06 or newer

T58 MASTER V1.1+T58 SLAVE V1 and T58 SLAVE V2(mixed): unable to upgrade V2 slaves unless the version of V2 slaves is 2.06 or newer, V1 slaves can be upgraded successfully

c. T58 MASTER V2

T58 MASTER V2+all slave V1: no issue, after updating, V1 slaves will be upgraded to the latest version of V2 slaves.

T58 MASTER V2+all slave V2: unable to upgrade V2 slaves unless the version of V2 slaves is 2.06 or newer

T58 MASTER V2+slave V1&V2: unable to upgrade V2 slaves unless the version of V2 slave is 2.06 or newer, if the V2 slaves can be upgraded, after updating, V1 slaves will also be upgraded to the latest version of V2 slaves

d. T45/T63 V1&V2

If battery version starts with 1.xx, please contact us to upgrade them into a bridge version then they can be upgraded to the latest version.

e. BMS Parallel Box:

a) BMS Para Box V1(T58-P1)+ all T58 V1 slaves, slaves cannot be upgraded remotely, and it is not recommended to upgrade the slaves with a USB flash drive, either.BMS can be upgraded remotely.

b) BMS Para Box V2(TP203) +all T58 V1 slaves, slaves cannot be upgraded remotely (but the slaves can be updated manually in this case, please contact us for the update file). BMS can be upgraded remotely.

c) BMS Para Box V2(TP203) +T58 V1&V2 slaves(mixed), and the version of V2 slaves is 2.06, you can upgrade the slaves, after updating, the version of all slaves will be 2.06. Otherwise, salves cannot be upgraded remotely.BMS can be upgraded remotely.