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|Affected Product ID
||Battery voltage exceeds the maximum voltage in certain stress test situations|
The Cisco Wireless IP Phone 8821 Firmware Release 11.0(5) might cause battery swelling.
If the Cisco Wireless IP Phone 8821 runs Firmware Release 11.0(5), the battery can expand if you charge the battery in a desktop charger or multi-charger continuously over extended periods of time.
A phone that is affected by this issue can exhibit these symptoms:
- The battery expands.
- The battery door is difficult to close or does not close properly.
- The battery is installed incorrectly.
In order to verify that the battery is installed correctly, see the Install the Cisco Wireless IP Phone 8821 Battery section in the Cisco Wireless IP Phone 8821 and 8821-EX User Guide.
In order to avoid or resolve this issue, upgrade the Cisco Wireless IP Phone 8821 to the latest firmware version or versions listed here.
- Release 11.0(5)SR1
- Release 11.0(5)SR2
- Release 11.0(5)SR3 or later
If the battery has expanded, you can request a Return Material Authorization (RMA) replacement using the Upgrade Program form in the next section after carefully removing the battery as described in the Battery Removal and Replacement Instructions section.
Note: If you cannot remove the battery, contact the Cisco Technical Assistance Center (TAC) for additional assistance.
Battery Removal and Replacement Instructions
Complete the Replace the Cisco Wireless IP Phone 8821 Battery instructions listed in the Cisco Wireless IP Phone 8821 and 8821-EX User Guide to remove and replace the battery.
Warning: Follow these precautions when you remove the battery:
- Stop charging the battery and wait for the battery to completely cool down. Do not attempt to remove the battery if the battery is warm or hot.
- Do not use tools and/or sharp objects to open the battery compartment or to remove the battery. The warranty for the phone will be void if sharp objects or tools are used.
- If the battery has physical damage, do not continue to use the battery. A battery that is physically damaged might experience a thermal event.
A Form must be filled out for each separate Ship to Address.
The Upgrade Order Reference Number should be unique for each time the Form is filled out.
Please enter a valid Serial Number in the Form.
You will receive an acknowledgement email immediately after submitting the Form with Request #. Depending on material availability, both you AND the Customer email address will receive a confirmation email with Order# in 7 to 10 days. UMPIRE orders are proactive replacements and do NOT adhere to normal SLAs or Service Contracts.
NOTE: If your Ship to Address is in the following countries, please expect delays of up to 3 months depending on importation regulations: Argentina, Brazil, Columbia, Mexico, Venezuela, India, All countries in Asia (i.e. Singapore, Malaysia, Hong Kong, China, Vietnam, Korea, Thailand, Philippines), and all non-EU countries (ie: UAE, Russia, Turkey). You will receive your Order# at that time. Thank you for your patience as this process is beneficial for the customer; it will save them the cost of vat/duty in these countries (which is very high).
If you were given a Sales Order Number for the shipment of your replacement parts, please refer to the SO Status Tool (Please note: you must have a CCO User ID and Password to access this site):https://cisco-apps.cisco.com/cisco/psn/commerce
If you were given an RMA Number for the shipment of your replacement parts, please refer to the "Service Order QuickSearch" Tool at the following location (Please note: you must have a CCO User ID and Password to access this site):http://tools.cisco.com/support/serviceordertool/home.svo
If you have not received an email with an Order# after 10 days, please send an email with your Request#(s) and Customer in the Subject line to:mailto:email@example.com
If you were given a Sales Order Number for the shipment of your replacement parts, please refer to the SO Status Tool (Please note: you must have a CCO User ID and Password to access this site): https://cisco-apps.cisco.com/cisco/psn/commerce
Note: Fields marked with an asterisk (*) are required fields.
1 For phone and fax, include 011 and the country code outside North America.
2 The serial number input field for each Product ID can hold up to 4,000 characters, including commas and white space. For longer lists of serial numbers, please submit additional requests.
3 For customers in Japan only *** please enter the building and the floor in the address field. Also, enter the contact person's name, the telephone number and the e-mail address in the appropriate fields..
For More Information
If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:
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