TML Infotainment Nexon MCE/EV Reflashing and Replacement Spec CONTROLLED COPY FOR RESTRICTED CIRCULATION © TATA MOTORS LTD. TITLE : TML Infotainment Nexon MCE/EV Reflashing and Replacement Spec Doc No: Date: 25th Apr20 Revision: 0.1 Page: 14 of 20 Prepared : Pritam Bansod Checked: Phani Kumar J Approved: Anand Sikchi This specification is the exclusive property of Tata Motors Limited. Without their consent it may not be reproduced or given to third parties. The above specifications are subject to change and therefore suppliers are requested to refer the latest one. popup “Software update has been interrupted, please insert USB with valid software.” till User insert USB drive with valid software. 3. Whenever user ‘Turn ON’ the infotainment system, Silver Box should check for valid software version and prompt user for software update in case of mismatch. This check shall be completed within 500 msec. whenever there is software mismatch, a full update will happen. 4. Silver Box shall prompt user every time with an interaction Popup for the following conditions, when user attempts to flash Same iSO image Software Upgrade Software Downgrade And proceed to flash based on user acknowledgement. A user confirmation such as ‘Update’ can be requested as part of software upgrade process. 5. Whenever the Software update is interrupted, Silver Box should ensure failsafe such that Infotainment system should prompt user to reflash again. 6. When USB is removed during Reflash, system will show a non-interactive popup to user to insert USB again and resumes the software update process automatically if USB is inserted again. In this case software reflash will start from beginning. 7. SB shall ensure Software Update is not initiated in IGN ON state (Prompt user to turn IGN OFF and initiate Reflash in One Hour Mode). Also, Infotainment system shall restart after completion of the software update. During Reflash, if user turn ON IGN, then SW update should continue. Same way, during reflash, SB should ignore all triggers which makes SB to enter into other states of Power Modes (e.g. when Driver door open or Key out, SB should not enter into EW mode). However during entire process of software reflash of three
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