ESP-07-2-007-03/V1.5 www.espressif.com Page1 / 7取消 ESP32 （4 MB flash） 系列模组产品出厂配置乐鑫通用 AT 固件 Discontinuation of Default Flashing Espressif Common AT Firmware on ESP32 (4 MB flash) Series Modules PCN 编号 PCN No. PCN20250602 提出日期 Issue Date of PCN 2025/06/26 变更日期 Proposed Date of Change 2025/07/14 预计变更后产品首次出货日期 Proposed Date of First Shipment After Change 2025/07/30 PCN 类型 PCN Category R 客户需要批准/ Customer Approval Required £客户通知/ Customer Notification 1. 影响产品名称/ Affected Product Name 产品名称 Product Name 订购代码 Ordering Code 变更前乐鑫通用 AT 固件料号 Espressif Common AT FW PN Before Change ESP32-WROOM-32 ESP32-WROOM-32-N4 ESP32U012 ESP32-WROOM-32D ESP32-WROOM-32D-N4 ESP32U012 ESP32-WROOM-32D ESP32-WROOM-32D-H4 ESP32U012 ESP32-WROOM-32D ESP32-WROOM-32D(M113DH3200PS3Q0) ESP32U012 ESP32-WROOM-32U ESP32-WROOM-32U-N4 ESP32U012 ESP32-WROOM-32U ESP32-WROOM-32U-H4 ESP32U012 ESP32-WROOM-32U ESP32-WROOM-32U(M113DH3200US3Q0) ESP32U012 ESP32-WROOM-32U ESP32-WROOM-32U(M113DH3200UH3Q0) ESP32U012 ESP32-WROOM-32E ESP32-WROOM-32E-N4 ESP32U012 ESP32-WROOM-32E ESP32-WROOM-32E-H4 ESP32U012 ESP32-WROOM-32E ESP32-WROOM-32E(M113EH3200PS3Q0) ESP32U012 ESP32-WROOM-32E ESP32-WROOM-32E(M113EH3200PH3Q0) ESP32U012 ESP32-WROOM-32UE ESP32-WROOM-32UE-N4 ESP32U012 ESP32-WROOM-32UE ESP32-WROOM-32UE-H4 ESP32U012 ESP32-WROOM-32UE ESP32-WROOM-32UE(M113EH3200US3Q0) ESP32U012 ESP32-WROOM-32UE ESP32-WROOM-32UE(M113EH3200UH3Q0) ESP32U012 ESP32-SOLO-1 ESP32-SOLO-1-N4 ESP32S11
ESP-07-2-007-03/V1.5 www.espressif.comPage2 /7ESP32-SOLO-1 ESP32-SOLO-1-H4 ESP32S11 ESP32-MINI-1 ESP32-MINI-1-N4 32MINIU002 ESP32-MINI-1 ESP32-MINI-1-H4 32MINIU002 ESP32-MINI-1U ESP32-MINI-1U-N4 32MINIU002 ESP32-MINI-1U ESP32-MINI-1U-H4 32MINIU002 2. 变更原因/ Reason for Change 根据对客户实际使用情况的调查，大部分采购段落 1 中所述模组的客户未使用乐鑫通用 AT 固件，少数使用 AT 固件的客户对固件版本有不同要求。因此，段落 1 中所述模组在出厂前将不预烧录乐鑫通用 AT 固件。 Based on the actual customer usage data, most of the customers who purchased modules mentioned in Para 1 did not use Espressif common AT firmware. Among the few who did, there were varying requirements for firmware versions. Therefore, Espressif will not flash the Espressif common AT firmware on the modules in Para 1 before shipment. 3. 变更描述/ Description of Change 段落 1 中列出的模组出货时，不配置乐鑫通用 AT 固件。 No Espressif common AT firmware will be flashed on the modules listed in Para 1. 4. 变更对比/ Change Comparison 请见附录 I：变更对比。 Please refer to Appendix I: Change Comparison. 识别方式/ Identification Method: 通过包装标签信息识别该变更。 Identify the change by querying the Package Label Information. 5. 变更影响/ Impact of Change 1) 品质和性能/ Quality & Performance: 由于产品的硬件未做变更，如贵司不使用上述模组出厂配置的乐鑫通用 AT 固件，则此变更对产品品质、性能及使用均无影响；如贵司使用上述模组出厂时配置的乐鑫通用 AT 固件，请及时联系对接的商务人员或 sales@espressif.com，我们将提供定制生产。 There are no hardware changes to the products mentioned in Para 1. Therefore, if you don't use Espressif common AT firmware, this change will have no impact on the quality, performance, and usage of such products. However, if you do, please contact your business contacts at Espressif or via sales@espressif.com. We will provide customized production to your needs.
ESP-07-2-007-03/V1.5 www.espressif.comPage3 /7 2) 交期/ Delivery: 无影响/ No impact 3) 订购代码/ Ordering Code: 无影响/ No impact 4) 软件/ Software: 无影响/ No impact 5) 认证/ Certification: 无影响/ No impact 6) 技术规格书/ Datasheet: 无影响/ No impact 6. 变更前后产品处理/ How to Deal with Products FIFO 7. 给使用者的验证建议/ Verification Suggestion to Users 如贵司不使用上述模组出厂配置的乐鑫通用 AT 固件，则此变更对产品品质、性能及使用均无影响。 如贵司使用上述模组出厂时配置的乐鑫通用 AT 固件，请及时联系对接的我司商务人员或 sales@espressif.com，我们将提供定制生产。 If you don't use Espressif common AT firmware, this change will have no impact on the quality, performance, and usage of such products. However, if you do, please contact your business contacts at Espressif or via sales@espressif.com. We will provide customized production to your needs.
ESP-07-2-007-03/V1.5 www.espressif.comPage4 /7 Appendix I / Change Comparison 1. Modules with Firmware PN ESP32U012 Item Before Change After Change Product Name No Changes Marking No Changes Firmware Version Information on Product Label Firmware Check AT AT Query AT version number through serial AT command Send: AT+GMR Reply: AT version: 2.1.0.0 NA
ESP-07-2-007-03/V1.5 www.espressif.comPage5 /72. Modules with Firmware PN ESP32S11 Item Before Change After Change Product Name No Changes Marking No Changes Firmware Version Information on Product Label Firmware Check AT AT Query AT version number through serial AT command Send: AT+GMR Reply: AT version: 2.1.0.0 NA
ESP-07-2-007-03/V1.5 www.espressif.comPage6 /73. Modules with Firmware PN 32MINIU002 Item Before Change After Change Product Name No Changes Marking No Changes Firmware Version Information on Product Label Firmware Check AT AT Query AT version number through serial AT command Send: AT+GMR Reply: AT version: 2.2.0.0 NA
ESP-07-2-007-03/V1.5 www.espressif.comPage7 /7 Espressif Email Notifications PCN Espressif sends email notifications of technical documentation changes, along with newsletters, PCNs and other valuable information, to subscribed customers only. If you wish to stay updated on our products and services, please subscribe here. Customer Response Requirements / Change Requiring Customer Approval a) PCN 30 PCN PCN 30 Customers are requested to acknowledge receipt of the PCN within 30 calendar days from the date of issue of the PCN. Customers would be considered as notified 30 calendar days after issue of the PCN if no acknowledgement is received. b) PCN 90 PCN The lack of any additional responses from customers within 90 calendar days from the date of issue of the PCN constitutes acceptance of the proposed changes. / Customer Notification a) PCN 14 PCN PCN 14 PCN Customers are requested to acknowledge receipt of the PCN within 14 calendar days from the date of issue of the PCN. Customers would be considered as having acknowledged the PCN if no response is received after 14 calendar days. pcn@espressif.com Please send feedback to pcn@espressif.com. / Customer Approval / Acknowledgement and Remarks Customer’s Company Name: PCN PCN Review Result £/ Accepted / Acknowledged £ Rejected £ Further Analysis Required / Comment: Representative’s Name Representative’s Job Title Representative’s Signature Date
